React Native vs Flutter: which one fits your app?

If you have decided to build one codebase for iOS and Android, the next question is almost always React Native vs Flutter. Both frameworks are mature, both are free, and both power apps with millions of users. They differ in how they draw the screen, what language your team writes, and who you can hire to maintain the app in two years. This post compares them on the criteria that matter for a product, not a benchmark chart.

Short answer

Pick React Native if your team already knows JavaScript or TypeScript, you have a React web app, or you want the app to look and behave like a standard iOS and Android app. Pick Flutter if your design is heavily custom, you want pixel-identical screens on both platforms, or you plan to target desktop and embedded screens from the same code.

If none of those points apply strongly, either one will ship a good app. The bigger risk is choosing a framework your team cannot maintain.

What each framework is

React Native is maintained by Meta and a large open-source community. You write components in JavaScript or TypeScript, and the framework renders them as real platform views. A button on iOS is an iOS button. The newer architecture replaced the old asynchronous bridge with a more direct link between JavaScript and native code, which removed a lot of the overhead older articles complain about. Most new projects start with Expo, a toolkit that handles builds, over-the-air updates and many device APIs.

Flutter is maintained by Google. You write widgets in Dart, and Flutter draws every pixel itself with its own rendering engine rather than using platform components. That gives you full control over the look and the same layout on every device. Flutter also targets web, Windows, macOS and Linux from the same project, though mobile remains where it is used most.

React Native vs Flutter compared

Criteria	React Native	Flutter
Maintained by	Meta and community	Google and community
Language	JavaScript / TypeScript	Dart
How UI is drawn	Real platform components	Own rendering engine
Look on iOS vs Android	Follows each platform by default	Identical unless you adapt it
Custom animation	Good, with the right libraries	Very strong out of the box
Code sharing with web	High if your web app uses React	Possible via Flutter web, less common
Hiring pool	Large, overlaps with web developers	Growing, smaller in many markets
Starter tooling	Expo	Flutter CLI and official packages
Native access	Native modules in Swift / Kotlin	Platform channels in Swift / Kotlin

The comparison, criterion by criterion

Language and team

This is usually the deciding factor. JavaScript and TypeScript are the most widely used languages on the web, so a React Native project can draw on a huge pool of engineers, and a React web developer can read the mobile code from the first week. Dart is pleasant and easy to learn, but fewer engineers know it already. That is not a problem if you are hiring a dedicated mobile team. It matters more if you want your web team to help.

UI and design

React Native uses platform components, so your app picks up iOS and Android conventions without extra work. When Apple or Google change the look of a native control, your app tends to follow. Flutter draws its own widgets, which is a strength when the design is a brand statement and a cost when you want the app to feel exactly like the platform. Flutter ships Material and Cupertino widget sets to help, but keeping them current with OS redesigns is the team’s job.

Performance

For the kind of app most companies build (lists, forms, feeds, maps, payments), both frameworks are fast enough that users will not notice the framework. Flutter has an edge for complex custom animation because it controls the whole rendering pipeline. React Native performance problems usually come from heavy work on the JavaScript thread or poorly built lists, and both have known fixes. If performance is the product itself, such as a game or a video editor, look at native instead, which we cover in native vs cross-platform app development.

Ecosystem and libraries

React Native benefits from the wider npm ecosystem, although not every JavaScript package works on mobile. Flutter’s package repository, pub.dev, is well organised and many core packages are maintained by the Flutter team itself. In both cases, check that a library is actively maintained before you depend on it. Abandoned packages are the most common source of upgrade pain in either framework.

Updates and releases

Expo makes it straightforward to ship over-the-air updates to the JavaScript part of a React Native app, within the store rules. Flutter compiles to native machine code, so most changes go through a normal store release, although third-party services offer code push for Flutter too. Policies and tools here change often, so check the current docs and the store guidelines before you plan around instant updates.

Long-term maintenance

Both frameworks release major versions regularly, and both require upgrade work every year as iOS and Android change. React Native upgrades have improved a lot with Expo, which bundles compatible versions together. Flutter upgrades are usually smooth because the framework controls more of the stack. Budget time for this either way. Our post on app maintenance cost after launch explains what that looks like in practice.

Cost

The framework itself costs nothing. The real cost is people and time, and the difference between the two is small compared with scope, design quality and testing. If you can hire faster for one of them in your market, that is where the saving is. For a broader view of what drives the budget, see how much it costs to build an app.

When to choose React Native

• Your company has React or JavaScript developers and you want them to contribute to mobile.
• You have a web app in React and want to share logic, types or validation between web and mobile.
• The app should feel native on each platform, with standard navigation, inputs and system behaviours.
• You want over-the-air updates for quick fixes between store releases, as far as store policies allow.
• Hiring speed matters and the JavaScript talent pool in your market is deep.

When to choose Flutter

• The design is highly custom, with branded components, rich motion and screens that should look the same on every phone.
• You want one project for mobile, desktop and embedded screens, such as a kiosk or an in-car display.
• Your team is starting fresh and has no strong attachment to JavaScript.
• Animation and visual polish are central to the product, for example in a consumer app or a game-like interface.
• You prefer one opinionated toolkit with many official packages over assembling libraries yourself.

Questions to settle before you choose

1. Who will maintain the app after launch, and which language do they already know?
2. Does the design follow platform conventions, or is it a custom visual system?
3. Do you have a web product, and is it built with React?
4. Will you need desktop or non-phone screens from the same code?
5. Which native features are core to the product, and do both frameworks support them well today?

Answer these in writing. The React Native vs Flutter decision is hard to reverse, because switching later is close to a full rewrite of the interface.

At Batriders we build cross-platform apps where they fit the product and native apps where a feature needs the platform, and you can see how a project runs on our mobile app development page.

Frequently asked questions

Is Flutter faster than React Native?

In most business apps, users cannot tell the difference. Flutter has an advantage with complex custom animation because it renders everything itself. React Native’s newer architecture closed much of the old gap, and well-built apps in either framework feel smooth.

Which is easier to hire for?

In most markets, React Native, because it uses JavaScript and TypeScript, which far more engineers know. Flutter developers are available and the community is growing, but the pool is smaller in many regions.

Can I switch from React Native to Flutter later?

You can, but expect to rewrite the interface and most of the app logic. Back-end services and APIs carry over. Treat the choice as a long-term one and document why you made it.

Is either framework at risk of being abandoned?

Both are backed by large companies and used in their own products, and both have large open-source communities. No technology choice is risk-free, but neither looks close to being dropped. Check each project’s current roadmap before you commit.

The better framework is the one your team can ship and maintain with confidence, and that answer comes from your people and your product, not from a benchmark.