React Native or native: what should your app be built in?
For most business apps, React Native is the right choice in 2026: a shared codebase for iOS and Android lowers development and maintenance cost, as a rule of thumb by around a third compared with two native apps. Native still wins for heavy graphics, hardware-close features, and extreme performance demands. The choice also affects team size and future vendor switches.
Should the app be built in React Native, one codebase that becomes an app for both iPhone and Android, or as two separate native apps? That’s the most common technical fork in the road when commissioning an app, and it affects budget, timeline, team size, and your freedom as the client for years to come. Here’s the decision basis, without the religious war.
What the options mean
Native development means the app is written in each platform’s own language and tools – Swift for iOS, Kotlin for Android. Two apps, two codebases, often two skill tracks on the team.
React Native means the app is written once in TypeScript/JavaScript and runs on both platforms with native interface components. One codebase, one team, with the option to write individual parts natively where needed.
The cost over the app’s lifetime, not just the build
The price difference at build time is well known: a shared codebase costs, as a rule of thumb, 60–70 percent of two native apps, since most of the logic, interface, and testing is shared. But it’s after launch that the difference grows.
| Cost item over the lifetime | React Native | Two native apps |
|---|---|---|
| New feature | Built once | Built twice, has to be kept in sync |
| Bug fix | Usually one fix | Often two separate fixes |
| Annual OS update | One codebase to update | Two parallel update tracks |
| Testing | Shared logic, tested per platform | Everything tested separately per app |
| Team needs | One team, one skill profile | Two skill tracks that both need staffing |
Since an app typically lives 5–10 years and maintenance often costs 15–25 percent of the development cost per year, it’s the maintenance line items that dominate the total calculation. Every feature built twice, every bug fixed twice – it’s that double cost that makes most business apps needlessly more expensive as native.
The cases where native still wins
React Native is the right default for most business and consumer apps, but there are clear exceptions where native development is worth the extra cost:
- Heavy graphics and advanced animation. Games, 3D visualization, video editing, and AR demand things each platform’s own graphics stack handles best.
- Hardware-close features. Deep integration with Bluetooth equipment, sensors, background processes, or platform-specific features that need to be used the same day they launch.
- Extreme performance demands. Real-time processing of large datasets, millisecond-sensitive flows.
- Single-platform apps. If the app is only going on iOS, the main argument for cross-platform disappears, and native is often simplest.
The line isn’t binary: a common pattern is React Native as the base with native modules for the individual parts that require it. The camera feature can be native while the rest of the app shares a codebase. That gives native capability where it makes a difference, without doubling the cost of everything else – login, lists, forms, and settings are the same regardless of the technology.
What the choice means for teams and vendor switches
Two consequences of the technology choice are often overlooked in the decision:
Team size. A React Native app can be kept running by a small team, sometimes a single developer during the maintenance phase. Two native apps require both skill tracks to be staffed even when the pace of development is low, which makes maintenance more exposed to resignations and vacations.
Future vendor switches. JavaScript/TypeScript developers are one of the largest developer groups in the world, and React Native skills exist at many Swedish agencies and freelancers. If you need to switch vendors in three years, the market is large. Niche technology choices, in either direction, shrink your negotiating position. Always ask the vendor to justify its technology choice based on your app, not on what they happen to have on the bench.
How to land the decision
List your five most important features and ask: does any of them require heavy graphics, hardware-close access, or extreme performance? If not, which is the case for most apps with flows, forms, lists, and maps, a shared codebase is the economically rational choice over the lifetime. If yes, let those specific features push you toward native or a hybrid architecture.
At Weapp, we build apps both in React Native and natively for iOS/Android, and we recommend technology based on the app’s needs – get in touch if you’d like a second opinion on the technology choice, or see our services for how we work.
Frequently asked questions
Can users tell the difference between a React Native app and a native app?
In the vast majority of cases, no. React Native renders real native components, and well-built apps feel at home on both platforms. Differences can show up in extreme cases – very heavy graphics, advanced animations, or large real-time datasets – and those are exactly the cases that justify native development.
What's the difference between React Native and Flutter?
Both are cross-platform frameworks with the same core promise: one codebase for two platforms. React Native is built on JavaScript/TypeScript and React, which gives a very large hiring pool and shared skills with web development. Flutter uses the Dart language and draws its own interface. Which one fits depends on your team's skills and the app's profile.
Can we switch from React Native to native later?
Yes, but in practice that's a rewrite of the app, not a migration. It's more common for individual parts with special requirements to be written as native modules inside the React Native app – that way you get native performance where it's needed without abandoning the shared codebase.
Is a React Native app half the cost of two native apps?
Not quite – a shared codebase shares most, but not everything. Some platform-specific work remains: store processes, testing on both platforms, and the occasional native customization. A reasonable rule of thumb is 60–70 percent of the cost of two native apps, with the biggest savings in ongoing maintenance.
What happens to our app if React Native stops being developed?
React Native is one of the world's most widely used app frameworks, with Meta as its main sponsor and massive use in large-company apps. No technology choice lasts forever, but the risk is managed mainly through well-structured code that separates business logic from the framework – that makes future pivots cheaper, whatever they turn out to be.