React Native vs Native iOS/Android — Real Trade-offs
React Native promises one codebase for iOS + Android. Native means Swift for iOS and Kotlin for Android — two separate apps. The trade-off isn't "better" or "worse," it's which constraints you can live with. Here's the honest breakdown.
React Native
One codebase for iOS + Android, JavaScript-based
Pros
- ✓Build iOS and Android from a single codebase
- ✓Roughly half the cost of building twice in native
- ✓Faster MVP delivery — typical 8-12 weeks vs 14-20
- ✓OTA updates without App Store review (via Expo)
- ✓Larger talent pool (JavaScript developers everywhere)
- ✓Shared logic with existing web frontends
Cons
- ✕Performance ceiling lower than native (matters for games, AR)
- ✕Some platform-specific APIs need native module wrappers
- ✕Bundle size larger than equivalent native apps
- ✕Lag of weeks-to-months before new iOS/Android APIs are usable
Best for
- Business apps, e-commerce, social, content apps
- Startups and MVPs
- Teams with JavaScript/React experience
- Cross-platform from day one
Native (Swift + Kotlin)
Separate apps in Swift and Kotlin — best performance, highest cost
Pros
- ✓Best possible performance on each platform
- ✓Day-1 access to new iOS/Android APIs
- ✓Most polished UX with platform-native conventions
- ✓Smaller app bundles
- ✓Easier App Store approvals
- ✓Best fit for games, AR/VR, video editing, hardware integrations
Cons
- ✕Two codebases means roughly 2× the cost
- ✕Two teams or one team that knows both Swift and Kotlin (rare)
- ✕Slower to ship features (must build twice)
- ✕OTA updates harder (App Store review for every change)
Best for
- Performance-critical apps (games, AR, video)
- Apps with deep hardware integrations (BLE, NFC, sensors)
- Products that lean on new platform features at launch
- Companies with separate iOS and Android teams already
Side-by-Side Comparison
React Native wins 6 categories — Native (Swift + Kotlin) wins 4 categories
React Native unless you genuinely need native-level performance
For 80%+ of apps, React Native is the pragmatic answer. You ship to both platforms from one codebase, your costs drop by 40-50%, and the performance ceiling is more than enough for any business app. Go native only when the app's core value is performance (games, AR, video editing) or when it relies on cutting-edge platform features at launch. I default to React Native + Expo for client work and have shipped over a dozen production apps this way without performance complaints.
Choose React Native if...
Choose React Native if you're building a business app, social app, e-commerce app, or anything where the bottleneck is product-market fit, not pixel-perfect 60fps animations.
Choose Native (Swift + Kotlin) if...
Choose native if you're building games, AR/VR experiences, video editing, fitness apps with deep sensor integration, or anything where 1-2ms of UI latency matters to users.
React Native vs Native (Swift + Kotlin): FAQ
When should I use React Native vs native?+
Is React Native really as good as native?+
Does Meta still use React Native?+
Can I mix React Native and native code in the same app?+
Will users notice my app is React Native?+
Still Not Sure Which to Choose?
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