Native vs React Native: which should you choose?

What is the difference between native and React Native?

A native app is built separately for each platform with the vendor's own tools: Swift with SwiftUI or UIKit for iOS, and Kotlin with Jetpack Compose or Android Views for Android. Each app talks to the operating system directly and uses its UI components and SDKs as they ship.

React Native lets you write one app in TypeScript or JavaScript with React, and renders real native views on both platforms rather than a web page in a wrapper. JavaScript runs on an engine such as Hermes and calls native code through the framework's interface layer. When something is missing, you write a native module in Swift or Kotlin and expose it to the shared code.

Is React Native fast enough?

For most apps, yes. Lists, forms, navigation, media playback and API-driven screens perform well in React Native, and the newer architecture reduced much of the overhead between JavaScript and native code. Users of a typical business or commerce app are unlikely to notice which approach was used.

Native still has the edge where the app pushes the device hard. That includes complex gesture-driven animation, real-time graphics, camera and AR processing, large on-device computation, and work that has to run reliably in the background. In React Native those parts often end up written natively anyway, which narrows the benefit of sharing code.

What about native APIs and new platform features?

New iOS and Android capabilities arrive in the native SDKs first. A native team can adopt them as soon as they ship, while React Native depends on the framework or a community library adding support, or on your team writing the bridge.

If the app is built around hardware or system integration, such as Bluetooth peripherals, health data, widgets, watch apps or advanced notification handling, plan for native work either way. The real question is whether that native work is the edge of the app or most of it.

How do team and maintenance costs compare?

React Native shares most UI and business logic across both platforms, so a feature is usually built, tested and fixed once. Teams that already work in React and TypeScript can contribute to mobile and share patterns, and sometimes code, with the web front end. Expect some platform-specific code and testing on both operating systems regardless.

Native means two codebases, and usually two sets of specialists. That costs more per feature, and features can drift apart between platforms without deliberate coordination. In return, each app follows its platform's conventions closely and avoids a layer of framework and third-party dependencies.

Both need ongoing maintenance. Native apps track yearly OS and SDK changes. React Native apps track those too, plus framework upgrades and the health of the libraries they depend on, so keep dependencies few and well maintained.

A decision checklist

Work through these questions with the product and engineering leads before committing. If most answers point one way, the choice is usually clear.

1. Does the core experience depend on heavy animation, graphics, camera, AR or on-device processing? If yes, lean native.
2. Does the app need new platform APIs as soon as they ship, or deep hardware and system integration? If yes, lean native.
3. Must iOS and Android ship the same features at the same time? If yes, lean React Native.
4. Is the app mostly screens over an API, such as accounts, content, booking, commerce or dashboards? If yes, lean React Native.
5. Does your team already work in React and TypeScript, with limited Swift or Kotlin experience? If yes, lean React Native.
6. Do you already have strong, separate iOS and Android teams? If yes, native keeps them productive.
7. Can you budget for two codebases over the life of the product, not just the first release? If not, lean React Native.

Mixed answers are common. A React Native app with a few native modules for the demanding parts is a well-established pattern, and so is adding React Native screens to an existing native app.

How does SigmaBit decide?

SigmaBit builds mobile apps both ways: fully native iOS in Swift and Android in Kotlin when a product needs maximum platform performance and access to native APIs, and cross-platform React Native when a single shared codebase and faster delivery across iOS and Android matter more. We help choose the right approach for each product rather than defaulting to one.

We ship end to end, from design through app-store release and ongoing support. Our projects include the mobile apps in the Pickleball.com ecosystem and a referee application on iOS and Android. See the technology we build with, or talk to us about your app.