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Flutter vs React Native vs Native: Which Should Your Startup Choose?
Flutter vs React Native vs native for UK startups: compare performance, cost, hiring and device access to choose the right mobile app approach.
For most startups launching on iPhone and Android, cross-platform is the sensible default: one codebase, one team and typically around 60–75% of the cost of two native apps. Pick Flutter for a highly branded, consistent interface, React Native if your team knows React and TypeScript, and native when deep device access or peak performance is the product.
Flutter vs React Native vs native at a glance
| Factor | Flutter | React Native | Native (Swift and Kotlin) |
|---|
| Language | Dart | JavaScript or TypeScript | Swift for iOS, Kotlin for Android |
| Codebases | One shared | One shared | Two separate |
| How the UI is drawn | Its own rendering engine (Impeller) paints every pixel | Real platform UI components | The platform's own toolkits (SwiftUI, Jetpack Compose) |
| Performance | Near-native; strong for animation | Near-native for most apps | Best possible |
| UI consistency | Identical on both platforms | Feels native on each platform | Fully platform-specific |
| Device features | Plugins, or platform channels to native code | Libraries, or native modules | Full, immediate access |
| Hiring pool | Smaller | Largest (JavaScript developers) | Two specialist skill sets |
| Relative build cost | About 1.2–1.5x one native app | About 1.2–1.5x one native app | About 2x (one app per platform) |
| Best for | Brand-led, custom interfaces | Teams with web and React skills | Hardware-heavy or performance-critical apps |
Performance and user experience
Performance
For typical startup apps (feeds, forms, bookings, maps, payments and chat), users are unlikely to notice a difference between a well-built Flutter, React Native or native app. Both frameworks have closed much of the old gap. Flutter's Impeller engine has been the default on iOS and on Android API 29+ since Flutter 3.27, removing the stutter that shader compilation used to cause the first time an animation played. React Native 0.82 (October 2025) was the first release to run entirely on the New Architecture, and since 0.84 (February 2026) the faster Hermes V1 JavaScript engine is the default.
Native still wins at the extremes: heavy 3D, augmented reality, real-time audio or video processing, and apps that must start instantly on low-end devices.
UI consistency
Flutter draws every pixel itself, so your app looks the same on iPhone and Android, which suits a strong brand. The trade-off is that it must recreate each platform's look. When Apple introduced its Liquid Glass design for iOS 26, the Flutter team said in June 2025 that it was not building it into its iOS-style Cupertino widgets yet, and moved that work into standalone design packages, which reached version 1.0 with Flutter 3.47 in August 2026. React Native uses real platform components, so apps tend to feel at home on each platform and track OS changes more closely, though matching both versions pixel for pixel takes extra work.
Cost, time and hiring
The biggest difference is one codebase versus two. A UK cost guide from April 2026 estimates that Flutter and React Native typically deliver both iOS and Android for around 60–75% of the cost of two native apps. As typical UK market ranges, not Buy Dream Web prices, published 2026 guides put an MVP or simple app at roughly £8,000–£40,000 and a standard small-business app at £30,000–£100,000, with maintenance adding about 15–25% of the build cost each year. Agency quotes are often given excluding VAT, so check whether 20% needs adding. Every Buy Dream Web project is quoted individually after a free consultation.
Store fees are the same whichever route you take. At the time of writing (October 2026), the Apple Developer Program costs 99 USD a year (or the local-currency equivalent) and Google Play charges a one-off US$25 registration fee.
Hiring and talent
In the 2025 Stack Overflow Developer Survey, 66% of respondents used JavaScript and 43.6% TypeScript, compared with 5.9% for Dart, 10.8% for Kotlin and 5.4% for Swift. That makes React Native the easiest to staff, especially if you already have React web developers. Dart is quick to learn for experienced developers, but seasoned Flutter specialists are fewer. Native means recruiting and retaining two separate specialisms.
Device features and ecosystem maturity
Both frameworks are mature and backed by large companies: Google maintains Flutter and Meta maintains React Native. Flutter's showcase includes Google Pay, BMW and Toyota; React Native's includes apps from Microsoft and Amazon. Cameras, location, push notifications, payments, biometrics and Bluetooth are well covered by existing packages.
When a package is missing, both can call native code directly: Flutter through platform channels (or the type-safe Pigeon tool) and React Native through native modules. React Native's documentation now recommends starting new apps with the Expo framework, whose EAS Update service can push JavaScript, styling and image fixes to users without a new store release; changes to native code still need one. Brand-new OS features, such as new widget types or watch experiences, usually arrive in native first, with framework support following later.
When native is worth it, and our MVP advice
Go native when the device is the product: augmented reality, advanced camera or audio work, continuous background tracking, complex Bluetooth hardware, Apple Watch or home-screen widgets, or when you need new OS features on launch day. Native also makes sense once you have a funded team large enough to run two codebases.
That calculation is shifting. In September 2026 Shopify announced it was moving its apps from React Native back to Swift and Kotlin, arguing that AI coding agents have cut the cost of maintaining two codebases; it rebuilt its Shop app natively in 12 weeks. But Shopify has a large, experienced mobile team, and it says React Native "remains an excellent framework". For most early-stage startups, a shared codebase is still the faster, cheaper way to learn what users want.
Our MVP advice
- Start cross-platform unless a specific native-only requirement rules it out.
- Choose React Native if your team already works in React and TypeScript, or if fast over-the-air fixes matter to you.
- Choose Flutter for a custom, brand-led design that must look identical everywhere.
- Build your back end as a clean API, so you can rebuild the front end natively later without starting again.
- Scope tightly: launch the core journey, measure, then invest.
Frequently asked questions
Is Flutter faster than React Native?
Flutter compiles to native machine code and draws its own interface, which helps on animation-heavy screens. React Native's New Architecture and Hermes V1 engine have narrowed the gap considerably. For most business apps, how well the app is built, including how it handles images, long lists and network requests, matters far more than which framework you choose.
Will users notice that my app is not native?
Usually not, if it is built well. Both frameworks power apps used by millions of people. Users notice slow screens, janky scrolling and controls that behave unexpectedly, and those problems come from build quality rather than the framework. Native is mainly noticeable where an app relies on the very latest platform features or intensive graphics.
Can we switch from cross-platform to native later?
Yes, but it means rewriting the app's front end, so plan for it rather than hoping to avoid it. Keeping business logic, data and integrations in a well-documented back end makes a later rebuild far cheaper. Many startups use a cross-platform MVP to prove demand, then decide with real usage data whether native is worth the investment.
How long does it take to build an MVP app?
At Buy Dream Web, simple apps typically take 2–3 months and complex apps 4–6 months or more. The timeline depends on the number of features, integrations with payment or booking systems, design complexity and app store review. A single cross-platform codebase usually means one build, one testing cycle and one release process rather than two.
Talk to us about your app
Buy Dream Web builds iOS and Android apps, both native and cross-platform with Flutter and React Native, so we can recommend the approach that fits your product rather than a favourite tool. Book a free video consultation to talk through your idea; we reply to every enquiry within 24 hours, and you will have a dedicated project manager throughout. Book a free consultation or get a free quote.
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