If you are planning a mobile app, one of the first technical questions is whether to build it with a cross-platform framework such as React Native or to build separate native apps for iOS and Android. The answer affects cost, timeline, the team you need and how easy the app is to maintain.
This guide explains the difference in plain terms and gives a simple way to decide. For Flutter as an alternative, see React Native vs Flutter.
What "native" means
Native apps are built with each platform's own tools: Swift for iOS and Kotlin for Android. You build two apps, usually with two sets of skills. They have direct access to everything the platform offers, as soon as it is released.
What React Native is
React Native is a framework created by Meta for building mobile apps with JavaScript or TypeScript and React. Most of the code is shared between iOS and Android, and it renders real native interface components, so apps look and behave like native apps. Where needed, native code can be added for specific features. It is a type of cross-platform app development.
How they compare
- Cost: React Native is usually lower, since one codebase serves both platforms.
- Time to launch: React Native is usually faster to ship on both platforms at once.
- Performance: native has the edge for heavy graphics and complex animations. For typical business apps, users will not notice a difference.
- Device features: both can use the camera, location, notifications, biometrics and payments. Native gets brand-new platform features first.
- Team: React Native needs one team, often sharing skills with web developers. Native usually needs iOS and Android specialists.
- Maintenance: one codebase to update with React Native, two with native.
When React Native is the smart choice
- Business apps built around forms, lists, bookings, dashboards, messaging and payments.
- You need both iOS and Android, on a sensible budget.
- You want to launch quickly and iterate.
- Your web app uses React, so skills and some code can be shared.
- A small team will maintain the app.
When native is worth the extra cost
- Games or apps with heavy 3D graphics or complex animations.
- Apps that depend on advanced or brand-new device features, such as specialized camera processing, augmented reality or deep hardware integration.
- Apps where every millisecond of performance matters.
- You only need one platform and already have that team.
- Very large apps with separate platform teams already in place.
The middle ground
It is not all or nothing. React Native apps can include native modules for specific features, such as a custom camera screen, while the rest stays shared. This gives most of the savings with native quality where it matters.
Do you need a store app at all?
Sometimes a progressive web app is enough: a website that can be installed on the home screen, work offline and send notifications on most devices. It avoids app store reviews and fees and works on any device with a browser. It suits internal tools and simple customer apps; it is weaker for deep device features and app store discovery. See progressive web apps explained.
Do not forget the backend
Whichever you choose, most apps need a backend: user accounts, data storage, notifications and integrations. This is often as much work as the app itself and is the same for both approaches. See app backend and APIs.
App store considerations
Both approaches go through the same app store reviews and rules. Plan time for store listings, screenshots, privacy details and review, especially for the first release. React Native apps also support over-the-air updates for JavaScript changes within store rules, which can speed up small fixes. See app store launch.
What it costs
Costs depend on screens, features, integrations and design. As a rough guide, a React Native app for both platforms often costs meaningfully less than two native apps with the same features, and ongoing maintenance is lower too. See how much does it cost to build a web app and how long does it take to build an app for how estimates work.
A simple decision guide
- Is the app mainly forms, lists, content and transactions? React Native.
- Does it need heavy graphics or brand-new device features at its core? Native.
- Do you only need one platform, with an existing native team? Native may be simpler.
- Could a website do the job? Consider a progressive web app first.
- Unsure? Build a prototype of the hardest feature in React Native and test it.
An example
Imagine a goal tracking app that needs iOS and Android versions, reminders, progress charts and account sync. None of that needs brand-new device features or heavy graphics, so React Native fits well: one codebase, native notifications and charts that run smoothly on ordinary phones. An app built around augmented reality would point the other way. This is illustrative. For a real product in this space, see our goal and effort tracking app case study.
Keeping the app up to date
Every mobile app needs regular updates, whatever it is built with. Apple and Google release new operating system versions every year, and apps must keep up with their requirements to stay in the stores. React Native itself also releases new versions, which should be adopted steadily rather than skipped for years. Native apps need the same care on two codebases. Budget for a few updates a year, plus fixes as devices and rules change.
Testing on real devices
Both approaches need testing on a range of real phones, not just simulators: older and newer models, small and large screens and different operating system versions. Android in particular runs on a wide variety of devices. Automated tests catch regressions, and a short manual check on real devices before each release catches the rest. See human oversight and quality.
Team and hiring
React Native developers share much of their skill set with web developers who use React, which makes hiring and sharing work across web and mobile easier. Native development needs specialists for each platform. For a small business, that difference often matters as much as the build cost, because the same people will maintain the app for years.
Common mistakes
- Choosing native by default when React Native would do, doubling cost.
- Choosing React Native for an app whose core is heavy graphics.
- Forgetting the backend and store work in the budget.
- Building for both platforms before proving the idea on one, or on the web.
In short
For most business apps, React Native gives native-quality apps on both platforms for less money and time. Choose native when the app's core depends on performance or device features that cross-platform tools handle poorly. When in doubt, test the hardest part first.
Whichever you choose, start with the smallest version of the app that proves its value, launch it to real users and let their feedback shape what comes next. That matters more to the success of the app than the framework itself. For help planning a first version, read how to plan a SaaS MVP.