React Native vs Flutter vs Native Mobile for UK Development — Honest Comparison (2025)
React Native is the right default for most UK mobile projects: your web team can contribute, TypeScript throughout, and the UK React talent pool is the largest. Flutter is genuinely better when you need pixel-perfect design consistency across iOS and Android, or when your team is Dart-first. Native (Swift/Kotlin) is only right for NHS DTAC-mandated apps requiring maximum accessibility and performance, or apps with complex hardware integration. Mobile framework choice affects developer hiring, code sharing with web, and UK-specific requirements including WCAG 2.1 AA accessibility, NHS DTAC Domain 5 (usability), and ICO AADC compliance for apps serving under-18s.
| Factor | React Native (TypeScript) | Flutter (Dart) | Native (Swift/Kotlin) |
|---|---|---|---|
| Code sharing with web | ✅ React — same components possible | ❌ Dart — separate codebase | ❌ Separate per platform |
| UK talent pool | ✅ Very large (React ecosystem) | Medium (growing) | Medium per platform |
| TypeScript support | ✅ Native TypeScript | ❌ Dart only | Swift/Kotlin type-safe |
| WCAG 2.1 AA accessibility | Good — React Native accessibility API | Good — Flutter semantics | ✅ Best — OS-native components |
| NHS DTAC Domain 5 (usability) | Requires testing — not always native feel | Consistent but not native | ✅ Native feel — best DTAC score |
| ICO AADC (under-18 apps) | Same implementation effort for all | Same | Same |
| App Store / Play Store submission | Requires bridging for some native APIs | Good Flutter plugins | ✅ Direct access to all APIs |
| Performance (60fps animations) | Good with Reanimated 3 | ✅ Excellent — Skia rendering | ✅ Best |
| ClickMasters default | Consumer/SaaS apps | Design-heavy/cross-platform | NHS DTAC / hardware-intensive |
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