React Native vs Flutter vs Native: Choosing a Mobile Stack

Choosing a mobile stack is a business decision as much as a technical one. It affects how much the app costs, how fast it ships and who can maintain it. This article compares the three main options and gives a way to decide.

The three options

Native means building two apps: one for iOS in Swift and one for Android in Kotlin. Each uses the platform's own tools and interface components.

React Native uses JavaScript or TypeScript and React. It renders the platform's real interface components, and most code is shared between iOS and Android.

Flutter uses the Dart language and draws its own interface with its own rendering engine. Most code is shared, and the app looks the same on both platforms.

How they compare

Cost and speed

Cross-platform development shares most of the code between platforms, so one team builds both apps. Native development requires the work to be done twice, usually by different specialists. For a typical business app, cross-platform is the cheaper and faster route.

Performance

For forms, lists, feeds, maps and media playback, users will not notice a difference between the three. Native has an advantage for demanding graphics, heavy background processing and real-time audio or video.

Access to device features

Native has immediate access to every platform feature, including new ones on release day. React Native and Flutter reach device features through plugins. Common features are well covered, and unusual hardware or brand-new platform APIs may require writing native code yourself.

Look and feel

React Native uses platform components, so the app feels at home on each system. Flutter draws everything itself, which gives precise control over a custom design and an identical appearance everywhere.

Hiring and maintenance

React Native suits teams that already work with React on the web, since the skills and some code carry over. Flutter requires learning Dart, which most developers pick up quickly. Native requires separate iOS and Android expertise for the life of the product.

Which one to choose

Choose React Native when:

• You have a web product built with React, or a team that knows it
• You want the app to follow each platform's conventions
• You want to release updates quickly

Choose Flutter when:

• The design is highly custom and must look identical on both platforms
• You plan to target desktop or embedded screens as well
• Your team has no existing attachment to React

Choose native when:

• The app depends on advanced device capabilities, such as augmented reality, complex Bluetooth devices or intensive background work
• Performance is the product, as in games or video editing
• You are building for one platform only

A middle path

The choice does not have to be all or nothing. Both React Native and Flutter allow native modules for the parts that need them. A common approach is to build the app cross-platform and write one or two demanding features natively.

Questions to answer first

1. Which device features does the app depend on?
2. Do you need both platforms at launch?
3. Who will maintain the app in two years?
4. Do you already have a web product and backend?
5. What is the budget for the first release?

With these answered, the choice is usually clear.

Summary

For most apps, cross-platform development delivers both platforms at lower cost with no difference that users can perceive. Native is the right choice for a smaller set of apps with demanding hardware or performance needs.

We build with all three as part of our mobile app development service. If you would like a recommendation for your app, send us a short description and we will reply with our reasoning.