Author: Vendrux

‍Hybrid app development is the new way to build mobile apps. As frameworks and development tools have matured, it’s no longer absolutely necessary to build and maintain separate apps with separate codebases to serve users on different platforms.

Today, you can build once, and ship to Android, iOS, and sometimes the web as well, significantly cutting down the barrier of entry to launching a mobile app.

This article breaks down the technology behind hybrid mobile apps, so you can understand the best way to move forward with your app, and how to go live as efficiently as possible.

Note: We’re including cross-platform frameworks like React Native and Flutter here, though many would argue these don’t count as hybrid frameworks. However, they’re often included in the conversation, so we’ll include them in ours as well.

At a Glance: Hybrid App Frameworks Compared

How Do Hybrid App Frameworks Work?

The term “hybrid app framework” gets used loosely, and most guides treat every cross-platform tool as the same category. They are not.

Understanding the rendering approach behind each framework is the most important factor in choosing one, because it determines your app’s performance ceiling, the skills your team needs, and how the finished app looks and feels to users.

There are four distinct approaches:

WebView-based hybrid (Ionic, Capacitor, Cordova, Framework7)

Your app is built with HTML, CSS, and JavaScript. A native container displays your web code inside a WebView, and a bridge layer (Capacitor or Cordova) gives that web code access to native device features like the camera, GPS, and push notifications. 

This is hybrid development in the traditional sense. The advantage is maximum code reuse (95-100%) and the ability to use any web framework. The trade-off is a lower performance ceiling for animation-heavy or compute-intensive apps.

Native rendering via bridge (React Native, NativeScript)

You write your logic in JavaScript, but the framework translates your UI code into actual native components. 

A React Native button is a real iOS UIButton or Android MaterialButton. The result looks and performs more like a native app than a WebView-based approach. You share 80-90% of code across platforms, though platform-specific UI tweaks sometimes require writing native modules.

Custom rendering engine (Flutter)

Flutter takes a different approach entirely. Instead of using native UI components or a WebView, it draws every pixel on screen with its own rendering engine (Impeller, formerly Skia). You write in Dart, and Flutter compiles to native ARM code. 

This gives you complete control over how every element looks and animates, with consistent 60 FPS performance across platforms. The trade-off: Dart is specific to Flutter, and app bundle sizes tend to be larger.

Shared logic, native UI (Kotlin Multiplatform)

KMP shares business logic (networking, data models, validation) across platforms using Kotlin, but keeps the UI layer fully native. You write SwiftUI for iOS and Jetpack Compose for Android. This gives you truly native look and feel with no compromise, while eliminating duplication of core logic. The trade-off: you still need platform-specific UI developers, and the code sharing percentage (50-70%) is lower than other approaches.

The Best Frameworks for Hybrid App Development in 2026

Let’s break down the top hybrid app frameworks used today – how they work, what they’re best for, and which is the right choice for your project.

Flutter: Best for Custom UI and Rich Animations

Flutter is Google’s open-source UI toolkit, and it has become the most popular cross-platform framework by developer adoption. According to the 2025 Statista developer survey, 46% of developers building cross-platform apps use Flutter, up from 42% the year before. 

The framework has over 174,000 GitHub stars and one of the most active package ecosystems in mobile development (pub.dev).

Flutter uses Dart, a language developed by Google that compiles to native ARM code. The framework’s key technical advantage is its rendering engine. While most frameworks rely on the platform’s built-in UI components, Flutter draws everything from scratch using Impeller (the successor to Skia). That means every button, animation, and transition looks identical on iOS and Android, and you have pixel-level control over the entire interface.

This rendering approach makes Flutter the strongest choice for apps with complex, custom interfaces. If your app needs rich animations, custom design systems, or highly interactive UI (think: fintech dashboards, media players, or interactive retail experiences), Flutter handles it with consistent 60 FPS performance.

Apps built with Flutter include Google Ads, BMW’s connected car experience, Alibaba’s Xianyu marketplace, eBay Motors, and Toyota’s infotainment system.

The trade-offs are real. Dart is not widely used outside Flutter, so your team’s skills do not transfer easily to other projects. Flutter apps also tend to have larger bundle sizes than React Native apps (the baseline binary adds roughly 4-5 MB). And while Flutter’s package ecosystem is growing fast, it is still smaller than React Native’s.

Choose Flutter if: your app demands custom UI, smooth animations, and visual consistency across platforms, and your team is willing to learn Dart.

React Native: Best for JavaScript Teams and Large Ecosystems

React Native is Meta’s open-source framework for building mobile apps with JavaScript and TypeScript. It has been around since 2015, making it one of the most mature cross-platform options available. While Flutter leads in developer survey adoption, React Native has a larger footprint in production: 12.57% of the top 500 US Play Store apps use React Native, compared to 5.24% for Flutter.

The framework works by mapping JavaScript components to native UI elements through a bridge layer. A in React Native becomes a UIView on iOS and an android.view.View on Android. Your code is JavaScript, but the rendered output uses real platform components, which gives apps a native feel without writing platform-specific code for most features.

React Native’s New Architecture (Fabric renderer and TurboModules) is a significant upgrade that reduces the overhead of the JavaScript bridge. Apps built on the new architecture see lower memory usage and faster interactions, particularly in list-heavy and animation-heavy screens.

The ecosystem is the largest in cross-platform development. The npm package registry has thousands of React Native libraries, and finding experienced developers is easier than for any other framework. If your team already knows React for web development, the learning curve for React Native is manageable.

Instagram, Facebook Marketplace, Walmart, Discord, Shopify, and Tesla all use React Native in production.

The trade-offs: complex native interactions sometimes require writing native modules in Swift or Kotlin, which increases the skill requirements for your team. And while the New Architecture improves performance, heavy JavaScript thread usage can still cause frame drops in edge cases.

Choose React Native if: your team has JavaScript or React experience, you need access to a large ecosystem of third-party packages, or you are building an enterprise app that requires a proven framework with deep industry adoption.

Ionic + Capacitor: Best for Web Developers Who Want Native Distribution

Ionic is the leading framework for building mobile apps using web technologies. It pairs with Capacitor (Ionic’s native runtime layer, which replaced Apache Cordova) to give web apps access to native device features and distribution through the App Store and Google Play.

The combination works like this: you build your app using any web framework you prefer (Angular, React, Vue, or plain JavaScript), then Capacitor packages it as a native app and provides plugins for camera access, push notifications, geolocation, biometrics, and other device features. Your app runs in a WebView, but Capacitor’s plugin system bridges the gap to native APIs.

This approach has the highest code reuse of any framework (95-100%). If you already have a web application or your team primarily writes HTML, CSS, and JavaScript, Ionic + Capacitor lets you reuse that expertise directly.

Apps built with Ionic include MarketWatch, the NHS COVID-19 app, Target, and Cisco Webex. The framework has over 50,000 GitHub stars and a mature plugin ecosystem.

The trade-off is performance. WebView-based apps cannot match Flutter or React Native for complex animations, real-time data rendering, or graphics-intensive interactions. For content-focused apps, dashboards, and CRUD apps, the performance is more than sufficient. For games, media editors, or apps with complex gesture-driven interfaces, the WebView layer becomes a bottleneck.

Another consideration: while web-based apps look consistent across platforms, they do not automatically adopt platform-specific design patterns (Material Design on Android, Cupertino on iOS). Ionic provides pre-built components that mimic both platforms, but the result is an approximation rather than truly native styling.

Choose Ionic + Capacitor if: your team knows web technologies, your app is content-focused or form-based, and you want maximum code sharing between your web app and mobile apps.

Kotlin Multiplatform (KMP): Best for Shared Logic with Native UI

Kotlin Multiplatform is JetBrains’ approach to cross-platform development, and it is rising fast. Unlike other frameworks on this list, KMP does not attempt to share UI code across platforms. Instead, it shares the business logic layer (networking, data persistence, validation, state management) while keeping the UI fully native on each platform. You write SwiftUI for iOS and Jetpack Compose for Android.

The result is an app that looks and behaves like a genuinely native app on every platform, because it is. There is no bridge, no WebView, and no custom rendering engine in the way. The shared Kotlin layer handles the parts of your app that do not need to look different across platforms, while the UI layer takes full advantage of each platform’s design system and capabilities.

Netflix, Cash App, VMware, and Philips have adopted KMP for their mobile apps. Google has also endorsed KMP for Android development, and JetBrains continues to invest heavily in the tooling.

The trade-off is the lower code sharing percentage. Since you write UI separately for each platform, you share 50-70% of your total codebase (compared to 90-95% with Flutter). You also need developers who are comfortable writing native iOS and Android UI, in addition to the shared Kotlin logic layer. For teams without native mobile expertise, this increases hiring requirements.

Compose Multiplatform (JetBrains’ experimental shared UI layer) aims to close this gap by letting you share Compose-based UI across platforms. It is maturing quickly but is not yet as production-ready as Flutter or React Native’s UI sharing.

Choose KMP if: your team has Kotlin or native mobile experience, you prioritize truly native UI quality over maximum code sharing, and you want a future-proof approach backed by JetBrains and endorsed by Google.

.NET MAUI: Best for Teams in the Microsoft Ecosystem

.NET MAUI (Multi-platform App UI) is Microsoft’s successor to Xamarin, and it uses C# with XAML to build apps for iOS, Android, Windows, and macOS. If your organization already invests in .NET and your developers write C#, .NET MAUI lets you extend that existing expertise to mobile without adopting a new language.

The framework uses native UI controls under the hood, so your app renders real platform components on each OS. Visual Studio provides a mature development environment with hot reload, debugging tools, and integrated testing. For enterprise teams already using Azure, Visual Studio, and .NET services, the integration is tight.

Apps built with .NET MAUI (or its predecessor Xamarin) include the UPS Mobile app, Alaska Airlines, and NBC Sports Next.

The trade-offs are notable. .NET MAUI has a smaller mobile developer community than Flutter or React Native, which means fewer third-party packages, fewer tutorials, and a smaller talent pool to hire from. The framework has also experienced stability issues since its initial release, with some developers reporting more bugs and edge cases than competing frameworks. Visual Studio for Mac (the primary IDE for macOS development) has been discontinued by Microsoft, which limits the development experience for iOS builds.

Choose .NET MAUI if: your team writes C#, your organization is invested in the Microsoft ecosystem, and you need mobile apps that integrate with existing .NET backend services.

NativeScript: Best for Direct Native API Access from JavaScript

NativeScript takes a unique approach among JavaScript frameworks: it provides direct access to native platform APIs without requiring plugins or bridges. You can call any iOS or Android API directly from JavaScript or TypeScript code. This means you are not limited to the features that a plugin author has chosen to expose.

The framework uses native UI rendering (not WebView), so the performance profile is comparable to React Native. It integrates with Angular and Vue for developers who prefer those web frameworks.

The trade-off is ecosystem size. NativeScript has a significantly smaller community than React Native or Flutter (~24,000 GitHub stars), fewer third-party packages, and less corporate backing since Progress Software transferred governance to the OpenJS Foundation. Finding experienced NativeScript developers is harder, and the long-term investment trajectory is less certain than the top-tier frameworks.

Choose NativeScript if: you need direct native API access without plugin dependency, your team knows Angular or Vue, and you are comfortable with a smaller ecosystem.

Framework7: Best for Lightweight Prototypes

Framework7 is an open-source framework for building iOS and Android apps with HTML, CSS, and JavaScript. It includes a rich set of pre-built UI components that mimic native iOS and Android design patterns, making it useful for rapid prototyping and lightweight apps.

The limitation is that Framework7’s UI theming comes from the framework itself, not the operating system. If a user changes their OS theme or an OS update shifts the design language, your app will not reflect those changes. This makes Framework7 better suited for prototyping and internal tools than customer-facing production apps.

Choose Framework7 if: you need a fast prototype or lightweight MVP with a native-like feel, and you do not need deep native integration.

Apache Cordova: Legacy Option (Consider Capacitor Instead)

Apache Cordova (formerly PhoneGap) was one of the first hybrid app frameworks. It pioneered the approach of packaging web apps inside a native WebView container with plugin-based access to device features.

Cordova is still functional, but it is declining. Adobe discontinued PhoneGap in 2020, and the Cordova ecosystem has seen falling download numbers and fewer plugin updates. Capacitor (from the Ionic team) is the direct successor and is actively maintained with a modern plugin architecture, better TypeScript support, and improved native API access.

If you have an existing Cordova app, migrating to Capacitor is straightforward. Capacitor supports most Cordova plugins and provides a clear migration path.

If you are starting a new project, use Capacitor instead of Cordova.

Detailed Framework Comparison

How to Choose the Right Hybrid App Framework

The right framework depends on your team’s skills, your app’s requirements, and your budget. Here is a scenario-based decision framework:

If your team writes JavaScript or TypeScript and you want a native-feeling app, start with React Native. The ecosystem is the largest, the talent pool is the deepest, and the New Architecture has closed the performance gap with Flutter for most use cases. Apps like Instagram, Discord, and Shopify prove the framework scales.

If your app needs rich, custom animations and a unique visual identity, choose Flutter. The custom rendering engine gives you pixel-level control that no other framework matches. Google Ads, BMW, and Alibaba demonstrate what Flutter can do with complex interfaces.

If your team primarily builds web applications and you want to distribute through app stores, use Ionic + Capacitor. You get to use your existing web skills and share nearly 100% of your code between web and mobile. For content apps, dashboards, and form-driven interfaces, this approach ships fast with minimal ramp-up.

If you are an Android-first team adding iOS support and native quality matters, look at Kotlin Multiplatform. Sharing business logic in Kotlin while writing fully native UI for each platform is the most uncompromising approach to platform fidelity. Netflix and Cash App use it for exactly this reason.

If your organization is built on Microsoft technologies, .NET MAUI is the natural fit. C# developers can build mobile apps without learning a new language, and the integration with Azure and Visual Studio is tight.

If you need to call native APIs directly without waiting for plugin support, NativeScript gives you unmediated access to every native API from JavaScript. The trade-off is a smaller community.

What About Team Size and Budget?

The framework you choose affects more than the technology stack. It also affects who you need to hire and how much the project costs.

Flutter and React Native have the largest talent pools, which means easier hiring and more competitive rates. Kotlin Multiplatform requires developers with native mobile expertise in addition to Kotlin, which narrows the hiring pool. .NET MAUI developers need C# skills and mobile experience, a combination that is less common than JavaScript + mobile.

For a rough comparison: experienced React Native developers typically command $80-$150/hr in the US (less with nearshore teams), while specialized KMP developers may cost 15-25% more due to scarcity.

What Does Hybrid App Development Cost?

Every framework follows the same cost pattern: complexity drives the price more than the framework itself.

These ranges apply across all major frameworks. The cost differences between frameworks come from developer rates (Dart and Kotlin specialists cost more than JavaScript generalists), development speed (Ionic ships faster for simple apps because it reuses web code), and the maintenance burden (custom rendering engines like Flutter require framework-version upgrades that can be time-consuming).

The cost that surprises most teams is maintenance. Plan for 15-25% of your initial build cost annually to cover OS updates, framework upgrades, dependency patches, and feature iteration. An app that costs $100K to build will likely cost $15K-$25K per year to maintain. That adds up fast over a multi-year lifecycle.

Developer rates also vary significantly by geography:

• US / Western Europe: $100-$200+/hr
• Eastern Europe / Latin America: $40-$100/hr
• South / Southeast Asia: $20-$60/hr

Nearshore teams (Eastern Europe, Latin America) are the most popular compromise between quality and cost for hybrid app projects.

For a deeper breakdown of app development costs, see our complete cost guide.

When You Don’t Need a Framework

Frameworks are for building apps from scratch. They assume you are writing new code, designing new screens, and creating something that does not exist yet. 

That makes sense for plenty of projects. But if your business already has a website that works well on mobile, building a separate app from scratch may be the wrong approach entirely.

Consider what Ionic + Capacitor actually produces: a native app built from web code, with push notifications, app store distribution, and access to native device features. 

Now consider that many businesses already have that web code. Think about an ecommerce website. They have a mobile-responsive website, with their product catalog, checkout flow, user accounts, and content already built and working.

Vendrux is a managed service that takes that existing website and extends it into native iOS and Android apps. You get the same end result that Ionic would produce (web code running as a native app with native features), without needing a development team to build it.

The practical difference matters. With a framework, you need developers to write the app, testers to QA it, and ongoing engineering resources to maintain it. 

With Vendrux, the app mirrors your website. When you update your website, your app updates automatically. There is no second codebase, no separate deployment pipeline, and no duplicate maintenance.

For ecommerce brands in particular, this changes the math. Brands like John Varvatos, and Bestseller (Jack & Jones) use Vendrux because they already invested in building a high-quality website. Rebuilding that same experience in Ionic or React Native would cost tens of thousands of dollars (minimum) and months of development time, with no guarantee of a better result.

Want to learn more about how Vendrux works, and what’s possible? Check out these case studies of successful Vendrux users, and book a free consultation if you’re ready to discuss your project in more detail.

Framework vs Vendrux: When to Use Which

To say one approach is universally best, for any kind of mobile app, would be foolish. Each framework has their place – and so do more efficient, managed approaches like Vendrux.

Use a framework (Ionic, Flutter, React Native, etc.) when:

• You are building a brand-new app with functionality that does not exist on your website
• Your app needs custom interactions that go beyond what a website can do (AR experiences, complex gesture-driven interfaces, real-time collaboration, hardware integrations like Bluetooth or NFC)
• You have an in-house or outsourced development team ready to build and maintain the app long-term
• Your product is the app itself (a SaaS tool, a game, a utility app)

Use Vendrux when:

• You already have a website that works well on mobile and want a native app in the App Store and Google Play
• Your app’s core functionality (browsing, purchasing, account management, content consumption) already lives on your website
• You want push notifications, a home screen icon, and native navigation without building a separate app from scratch
• You don’t want to maintain two separate codebases or hire a mobile development team
• You want to launch in weeks, not months

The distinction is your starting point. 

If you’re starting from zero, you need a framework. If you already have a working website and want to extend it into a native app, Vendrux skips the framework entirely and gets you to the same destination faster.

Final Thoughts

The hybrid and cross-platform framework landscape in 2026 is more capable than ever. 

• Flutter and React Native handle the vast majority of mobile app projects (though technically, one might not consider them “hybrid”).
• Ionic + Capacitor remains the fastest path for web teams. 
• Kotlin Multiplatform offers a genuinely new approach for teams that refuse to compromise on native UI quality. 
• The declining frameworks (Cordova, Framework7) have clear successors.

Choosing a framework comes down to three questions: what does your team already know, what does your app need to do, and what is your budget for building and maintaining it?

If you already have a website that does what your app needs to do, you may not need a framework at all. 

Vendrux extends your website into native apps with push notifications, app store presence, and native navigation, without the development overhead that comes with every framework on this list.

If you want to see what’s possible, get a free preview of your app and our team will walk you through everything.

Despite only being around since 2017, Flutter has already become the king of cross-platform frameworks – with recent research from Statista putting it ahead of all competitors:

If you want to develop natively compiled mobile, web and desktop apps all from a single codebase, then you need to learn about Flutter and consider it for your project. 

At Vendrux, we’ve developed thousands of native apps, and learned all the ins and outs of app development over the years. We wrote this article to teach you all you need to know about Flutter – what it is, how it works, and who it is for. 

By the end, you’ll know everything you need to make a sound decision about your app project. Let’s get into Flutter 101. 

What is Flutter?

Flutter was released by Google back in 2017, as an open-source UI SDK. 

It’s often associated with Android and iOS native apps – but it’s also used to develop for Linux, Mac, Windows, Google Fuchsia, and the web from a single codebase.

Flutter’s 7 year History

Since 2017, Flutter has evolved, going from strength to strength. Before we get into the technical details, skim this timeline for context. 

• 2017: Flutter Beta announced, introduced as a cross-platform framework for building mobile apps from a single codebase
• 2018: Google announces the Flutter Release Preview at Google I/O, bringing improved stability and a bigger widget library
• 2019: Flutter 1.0 launches, the first stable release establishing its readiness for production apps
• 2021: Flutter 2 released, introducing support for web and desktop app
• 2022: Flutter 2.8 brought performance improvements, app size reduction, and the Flutter Casual Games Toolkit 
• 2023: Flutter 3.0 announced, bringing support for macOS and Linux desktop apps, along with the rollout of Material 3 support and various performance and tooling upgrades 

So Flutter has really been going places, and taking the world of cross-platform development by storm. 

Now let’s get a little more into exactly what Flutter is.

Flutter 101

The most important initial fact to note:

Flutter is a cross platform app development framework. 

To illustrate exactly what that means, consider the original way of building mobile apps – native development. 

The Problem with Traditional Native Development 

There have always been two operating systems that dominate the smartphone market – iOS and Android. 

Just like Windows and MacOS on Desktop – iOS and Android work very differently at the foundational level, from the way the UI is structured to the way the software interacts with the hardware. 

The entire architecture is different in both software and hardware terms. So the programming languages and development tools required are different for each platform. 

Traditionally this means:

• iOS – Swift (or Objective C) as a programming language, Xcode and Simulator for development and testing environments

• Android – Kotlin or Java for programming, Android Studio and SDK 

You need to use these very different and distinct technologies to build the apps for iOS and Android separately, with two different codebases. 

This means that you need to hire different specialists (or teams) for each app, along with PMs and designers to work across teams. 

You’ll forever have two separate codebases to manage. When you have updates or bug fixes, you’ll need to work separately, pushing them to each. Whenever you want to build a new feature or functionality – you guessed it – you’ll have to build it specifically for each platform. 

This is all a lot of work, as you can imagine. 

Even worse, consider all the different screen sizes and aspect ratios within the iOS ecosystem – all the different iPhones and the iPad. And when it comes to Android, devices can be made by literally anyone, and there are countless devices and specifications.

You need to test for all of these, and make sure your apps (on both platforms) display smoothly and give a great UX. 

This all sounds hard right? Like doubling the work? 

Well, it is. 

That’s why native app development is a painstaking process, costing hundreds of thousands of dollars and many months to develop relatively simple apps. 

Flutter helps to make things more efficient – let’s find out how. 

How Flutter makes App Development more Efficient

So the problem with native development is how difficult and expensive it is – which is partially because of having to work with two separate codebases. 

Flutter solves this. 

Flutter is both a UI kit and a framework for developing apps for both iOS and Android from a single codebase. 

It has a large set of pre-built widgets that make it easier to layout your app, borrowing concepts from web design like padding and centering. 

You can use this foundational system to design and develop apps for almost any device and screen size.

At the most basic level, Flutter “asks” for a blank window from the device, whatever that may be. It will then draw onto that blank screen whatever UI element, interaction, or animation needs to be rendered. 

So whatever the OS, this will work the same, and the UI will “look the part” too – you can define and specify different styles and designs for iOS, Android, or specific devices. 

Now we’ve had a high level overview – let’s get more into the details of Flutter’s core features. 

Flutter: The Core Features

There are several cross-platform frameworks, but Flutter is unique.

Later on, we’ll compare Flutter with alternatives like React Native, but for now let’s review Flutter’s core value propositions:

• Develop from a single codebase: build for iOS, Android, web, and desktop with just one codebase for much more efficiency and speed. Typically, you can reuse at least 90% of your code. 
• Hot reload: make changes to your app and see the results instantly without losing the current application state. We’ll cover this more later – but it’s great for developer productivity.  
• Rich Widget Catalog: Flutter provides a comprehensive catalog of pre-designed widgets over 14 categories. They follow specific platform guidelines, so your app can look and feel native on any device.
• Performance: Flutter apps are compiled Ahead Of Time (AOT) into native machine code for iOS and Android, without the need for a “bridge” or interpretation layer like other cross-platform frameworks. The Dart (more shortly) code you write can execute directly, which can be great for creating a fast and smooth UX. 
• Customizable and Flexible: Thanks to its layered architecture, and the fact that Flutter “controls” every pixel on the screen – you have the potential for incredible customization. 

These are a few of the reasons why Flutter has pulled ahead of the competition to become the world’s most popular cross-platform framework. 

We will revisit all these in more detail later in the article. 

Flutter – the Technical Details 

Now we’ve gone through the basics, let’s go a little deeper and review some of the technical details. 

We’ll start off with the Dart programming language. 

The Dart Programming Language

Dart is relatively “young” in programming language terms, but it has still been around a while. 

Initially released in 2011 by Google, Dart was intended to replace JavaScript for web development. 

It never reached this lofty goal, but it did find its niche as the programming language for the Flutter ecosystem. 

Some key facts about Dart:

• Object Oriented: designed for programming styles that use “objects”, which are self-contained “entities” consisting of both data and methods. Think of them as “things” in the code which have both specific characteristics and “actions” they can perform. 
• Class Defined: objects in Dart are defined by what is known in programming as a “class”, which is like a recipe or blueprint for making an object – defining what data it can hold and what actions it can perform. For example in Flutter to create a new button, you define a button class with its color, size, and what should happen when it’s tapped. You can then reuse this any time you want. 
• C style Syntax: this just means that the way the language is written is similar to C, known for its curly braces { } and semicolons to end commands. Those with experience in C, C++, or Java will find Dart easier to understand. 
• Sound Type System: Dart is very careful about the types of data your code is working with, this helps programmers to catch mistakes more easily and ship less buggy apps 

Dart supports two different types of compilation –  just-in-time (JIT) and ahead-of-time (AOT). These support different phases in the app development process:

• JIT – used during development, and allows code to be compiled on-the-fly in small pieces through Dart’s virtual machine. It enables hot reload, allowing developers to see changes instantly, and is the default in development environments. 
• AOT – used when the app is ready for deployment to create a production build. Dart compiles the entire codebase into native machine code for iOS or Android, so that the apps can run directly on the device’s CPU. This is triggered when you build a release version of your apps. 

These allow for efficient development cycles and fast, predictable performance in production environments. 

Dart’s architecture is specifically designed for Flutter, and has a rich standard library and set of modules that can be used to build any type of app. 

To summarize – Dart is a modern and sophisticated programming language that you can use to build fast, powerful, and beautiful mobile apps. 

Now we’ve covered Dart, let’s move on to another important Flutter concept – widgets. 

Widgets: The Building Blocks of Flutter Apps

Widgets act as the fundamental UI components for apps, which Flutter combines in the UI to create complex designs and functionalities. 

Everything you see in a Flutter app is a widget, from a simple text label or an icon to more complex structures like buttons, sliders, and even the entire screen layout itself.

Some common and useful widgets are:

• Text: For displaying text.
• Row and Column: For creating flexible layouts.
• Container: For decorating its child with features like padding, margins, borders, or color.
• Image: To add images.
• Scaffold: Offers a host of UI features like drawers, snack bars, and bottom navigation.

There are 15 categories of widget in total. By combining these widgets in a widget tree – you can create apps of virtually any functionality or complexity. 

Rendering Engine and Framework

Skia is an open source, 2d graphics engine. It is used heavily by Google on various platforms – and Flutter is one of them. Flutter relies entirely on Skia for rendering the UI build with widgets. 

It’s what allows Flutter to paint UIs onto the canvas of the device screen at 60fps or more, making UIs smooth and crisp across platforms. This performance is critical for creating seamless, responsive applications.

Setting up a Flutter Development Environment 

We’ve learned the fundamentals about how Flutter works, let’s quickly cover setting up a development environment. 

Required Tools and SDKs

Flutter SDK is, unsurprisingly, a must. It offers a comprehensive suite of tools for building, testing, and compiling Flutter apps. 

Dart SDK is also required and comes bundled with Flutter.

For code editing, Visual Studio Code or Android Studio are good choices and recommended for their solid support for Dart and Flutter. Both support the Flutter plugin which simplifies development.

Technically though – you can use any IDE or text editor combined with Flutter’s command-line tools!

Setting Up for iOS and Android Development

Even though you develop your apps from a single codebase – you also need to test them on the major platforms. They each have their own quirks and unique features – and might need some minor tweaks and adjustments for each. 

For iOS development, Xcode is essential, and you’ll need an iOS simulator to test your apps. Alternatively, an actual device can offer a more accurate testing environment. 

For Android, Android Studio provides not only an excellent IDE but also an emulator to test your apps. 

This basic setup allows you to develop, test, and deploy your Flutter apps across both major platforms efficiently. 

Flutter also lets you Implement platform-specific UI features and functionality if needed! You still get to reuse the vast majority of the code, but also account for edge cases and platform quirks. 

Integrating Flutter into Developer Workflows 

Apart from its sheer power, there are a few reasons why developers love Flutter and it gets more and more popular every year. 

One of the most popular features is hot reload. It basically allows you to see the effect of your code changes in real-time, without needing to restart your apps. This is thanks to the previously mentioned JIT compilation. This makes developers’ lives easier, and lets them experiment with bug fixes and new designs faster. 

From the business owner’s perspective, this speeds up development and frees up your team. 

Flutter also lends itself well to testing and debugging. 

This is absolutely crucial to make sure the apps perform well and succeed, and Flutter comes with all the testing and debugging tools you need.

It supports unit, widget, and integration testing – and integrates well with several IDEs (mentioned above) to make things simple. 

Finally, Flutter integrates perfectly with various continuous integration and deployment tools (CI/CD). 

These tools allow for automated testing, building and deployment processes – making your team more productive and ensuring app quality. Flutter works great with platforms like Codemagic, Bitrise, and GitHub Actions, and you can easily set up effective pipelines. 

Overall – from a developer and devops perspective – Flutter is an excellent choice with all the features needed to succeed. 

Businesses using Flutter

To get an idea of Flutter’s capabilities, let’s look at a few famous brands who are using Flutter. If you want, give these a download and take a look around for a live Flutter demo. 

These are all top brands with mature tech capacities. The apps they built are used by millions, which shows the possibilities. 

(Keep in mind though – they probably spent millions on them too). 

Now we’ve seen some examples of Flutter apps and learned some key facts about the framework – lets directly compare it to alternatives. 

Flutter Alternatives – How does it Measure Up? 

We have now covered key aspects of Flutter. 

We’ve seen how Flutter can be a great choice for developing apps the cross platform way – but it isn’t the only option. Not by a long shot. 

Not only do many businesses still build apps the traditional native way, but there are other cross-platform frameworks too, as well as hyper-efficient app development services like Vendrux. 

The Pros and Cons of Flutter

Before we compare the alternatives, let’s briefly review the pros of Flutter. 

• Single Codebase for Multiple Platforms, making app development very efficient and making it a great choice for startups 
• Rich Widget Library that allows for the creation of highly customizable and visually appealing user interfaces.
• Performance nearly indistinguishable from native apps because it compiles to native machine code
• Hot Reload and the Dart ecosystem that enhances the development process 
• Vibrant Ecosystem and Community providing a wealth of resources, including packages, plugins, and tools.

What we haven’t mentioned yet is the cons of Flutter. They do exist, and they’re important for evaluating the framework objectively. 

Here are the most important drawbacks:

• Larger App Size – Flutter apps tend to have larger file sizes compared to native apps. This can be a drawback, especially in markets where users have limited storage space on their devices or slower internet connections for downloading apps.
• Limited Library Support for Advanced Features – while Flutter’s library support is excellent, it may lack some advanced features found in native development. This limitation means that for very specific or advanced functionalities, and for “innovating” with something very new and cutting edge, you might need to build custom solutions or rely on external tools.
• Learning Curve – for teams unfamiliar with Dart (Flutter’s programming language) or declarative UI programming, there can be a learning curve. However, once overcome, Flutter becomes a powerful tool in your development arsenal.

Another important point. 

Flutter apps are still “difficult” and expensive to build – they’re just much less so than traditional native apps. They’ll still cost tens of thousands of dollars and months to ship. 

So while they’re very efficient compared to native development – they may be “inefficient” compared to hybrid development and especially compared to Vendrux which can get you comparable apps in just weeks for of the cost. 

Let’s compare Flutter in more detail versus the alternatives. 

Flutter vs Native Development

While Flutter was developed to improve on native development, the original native way to build apps still has some advantages in some scenarios. 

If the following are very important to you, native might be the way to go. 

When Native > Flutter

• Optimal Performance: Native apps are known for their speed and optimal performance, because they use the operating systems’ core programming languages and APIs. For extremely demanding applications like high-end games or apps relying on complex animations, native can (theoretically) offer the edge in performance. For the majority of apps though – you won’t see the difference. 
• Advanced Capabilities: some advanced or cutting edge features might be easier to integrate natively. Flutter does allow you to call native APIs via bridging, but this might not always be straightforward and without tradeoffs.

Some make further arguments. 

For example, they’ll say that the native ecosystems are more established, that the community and support is better, that it is easier to comply with platform specific best practices. 

In our opinion – these points are either subjective or outdated. 

Back in the earlier days of Flutter they were true, but the community and ecosystem has evolved massively. Flutter is a big player now, used by the biggest and most tech savvy companies on earth. 

In our opinion – unless you need a cutting edge or extremely high performance application Flutter beats native in most cases. 

Let’s reiterate why.

Why Flutter > Native 

• Development Time: the single codebase, productivity boosters like hot reload, and deep library of widgets makes it easier and faster to develop apps 
• Development cost: fewer developer hours are required, and instead of hiring separate (specialist) teams for iOS and Android, you can have a single, smaller team working on both platforms. 
• Maintenance: maintaining and updating a single codebase is more efficient. Bug fixes and new features can be rolled out in one go. 

You can see that Flutter beats native on efficiency, and because of the time and cost savings that come from working from a single codebase. 

It is impossible to give an exact figure, but as a rough estimate time and money savings of 50% are possible. 

Now let’s move on to comparing Flutter with another popular cross-platform framework. 

Flutter vs React Native 

React native is another cross-platform framework developed by Meta. It allows developers to build iOS and Android apps using JavaScript and the React framework.

It shares several of Flutter’s advantages – like a single codebase and a strong community and ecosystem. 

Let’s compare some important differences. 

Why React Native > Flutter

• Familiarity: because React Native leverages JavaScript and one of its most popular frameworks, it can be more familiar to existing web teams and easier to upskill and adapt
• Code reuse: if your existing tech stack is JavaScript and React heavy, you might find it easier to reuse some of your existing code in the apps 

React Native also has a great community and a mature ecosystem. But, so does Flutter. Now, let’s look at a few compelling reasons why many prefer Flutter.

Why Flutter > React Native

• Performance: React Native “bridges” JavaScript code with native components. This can introduce performance bottlenecks and tradeoffs compared to Flutter’s direct compilation to native code.
• Speed: this is subjective, but many believe that Flutter apps are faster to develop due to a superior developer experience and inherent drawbacks of React Native

Beyond this, there are a lot of strong opinions each way. 

Many React Native advocates say that Flutter apps do not “feel” as native because they don’t directly use native components (they “draw” on the screen, remember) but React Native apps do. 

They also say Google is unreliable and could stop maintaining Flutter in the future (Same for Meta?). 

On the other hand – Flutter fans point to the superior developer experience and less “scrappy” workflows compared to React. They say that although Flutter apps may be “less native” in a sense – because of the superior performance they feel more native. 

Like many things in tech, opinion is divided. 

Here are our two cents though. 

If your team is already skilled in JavaScript/TypeScript and React, React Native is probably best. 

If performance is crucial to you, a modern widget-based experience is a pro, and “backed by Google” appeals – Flutter might be the best choice. 

Learn more about Flutter vs React Native

Flutter vs Vendrux

If you already have a web app or a website, Vendrux is a much better option than Flutter, let alone React Native or native development. 

Vendrux is not a framework, but an app development service. It works by taking your existing website, online store or web app and converting it into iOS and Android apps. 

Why Vendrux > Flutter

• Time and cost: although Flutter is “efficient” compared to Vendrux it is still an expensive and time consuming nightmare. Flutter apps will take months and cost tens (hundreds) of thousands. Vendrux apps are ready for launch in weeks, for a tiny fraction of the cost.
• Keep what works: you can keep all the features and functionality from the web, with no compromise. With Flutter, you will never exactly recreate your web experience. 
• No extra work: Vendrux builds and publishes and maintains and updates the apps for you. The apps also sync automatically with your site. So there’s no need to hire, give work to your team, or worry about expensive future headaches. 

Vendrux is a way to convert what you’ve already built. You’ve done all the hard work already building for the web, so you can keep focusing on that while the apps, compared to Flutter, run themselves. 

Because it is so fast and affordable, it’s a realistic way of seeing fast ROI from your apps. Building apps with Flutter is much more risky because of the time and capital investment. 

That said, there are cases where you would opt for Flutter over Vendrux:

Why Flutter > Vendrux   

• App only: if you are building app first and do not already have a web presence, Vendrux can’t help you 
• Unusual use case: Vendrux works best for ecommerce stores, online communities, media sites, and web apps. If you want to build a game or a demanding application Flutter may be better for you. 

You can check out some of the businesses that have used MobiLoud, and even get a preview of how your app will look. 

Preview your Vendrux app

Looking Ahead: The Future of Flutter

As we’ve seen, Flutter has really made a dent in the world of mobile development. 

Some skeptics warn that Google has a tendency to drop projects and leave entire communities hanging. But from what we can see, the ecosystem continues to evolve. 

A few things on the roadmap:

• Better Speed and More Device Support: making apps run smoother and faster, especially for iPhone users, while also making sure Flutter works well on a wide range of modern devices 
• Improving App Looks and Ease of Use: updating Flutter to include the latest design features, making it easier for apps to look good on Apple devices, and simplifying how developers create and manage the app’s appearance
• Easier Integration with Phone Features: deeper integration withiPhone and Android
• Tools and Language Updates: new tools and language updates to help developers build apps more easily, especially for AI app development 

Flutter will keep getting better for the foreseeable future – and seems committed to continual maintenance and evolution.

Is Flutter for you? 

We hope you’ve enjoyed this article and that you’ve learned a lot about Flutter. 

As mobile developers, we’re impressed with how the framework has evolved to conquer the cross-platform world in recent years. 

Remember – if you want to build apps from scratch, are willing to hire skilled specialists, and have months and tens of thousands of dollars to spend….. Then Flutter could be perfect for you. 

If you already have a website/app/store, you want to get to market fast and with no risk, and you want to keep all your web features and functionality – Vendrux is the better option. 

If you’re like our 2000+ clients, we build you apps at least as good as what you’d get with Flutter for a fraction of the investment. They’ll be much easier to maintain and integrate into your operations and workflows, and far more likely to generate ROI. 

Vendrux apps are good enough for multibillion dollar brands, with a startup friendly budget. 

So before you start researching Flutter in even more detail, think about whether Vendrux could be a much better option for you. 

You can preview how your Vendrux app would look now, and you can get all your questions answered by one of our helpful app experts. 

Let’s get you on the App Store and Google Play.

Book a demo call today.