Short answer: for most business apps (bookings, ordering, learning, loyalty, field teams), build with Flutter or React Native: one codebase gives you both an Android and an iPhone app, so it takes less time, needs one team instead of two, and is cheaper to maintain. Choose native (Kotlin for Android, Swift for iOS) only when the app depends on heavy graphics, deep hardware access or brand-new platform features. Between Flutter and React Native, the difference matters less than the team building it.
This guide is for the person paying for the app, not the developer: what each choice means for time to launch, team size, how the app feels, and who can look after it later.
What do "native" and "cross-platform" mean?
- Native means two separate apps: one written in Kotlin for Android and one in Swift for iPhone. Each is built by people who specialise in that platform.
- Cross-platform means one codebase that produces both apps. Flutter (made by Google, written in Dart) and React Native (made by Meta, written in JavaScript or TypeScript) are the two most widely used options.
Both cross-platform options produce real apps that you publish on the Play Store and App Store like any other. Users install them the same way and usually cannot tell how they were built.
Flutter vs React Native vs Native: the comparison
| Flutter | React Native | Native (Kotlin + Swift) | |
|---|---|---|---|
| Codebases | One, for Android and iOS | One, for Android and iOS | Two, one per platform |
| Time to launch | Shorter | Shorter | Longer: both apps are built separately |
| Team | One team | One team | Two skill sets, often two teams |
| Look and feel | Its own rendering engine, the same look on every phone | Uses each platform's own interface components | Each platform's own interface, exactly |
| Performance for business apps | Smooth; compiles to native code | Smooth; the current architecture removed most old bottlenecks | The best possible |
| Phone features (camera, GPS, notifications, payments) | Yes, through plugins | Yes, through libraries | Yes, directly |
| Brand-new OS features | Usually after the plugin is updated | Usually after the library is updated | Available on day one |
| Hiring later in India | Large and growing pool | Large: draws on JavaScript developers | Separate Android and iOS specialists |
| Upkeep | One codebase to update | One codebase to update | Two codebases to update |
| Best for | Most business apps, especially design-led ones | Most business apps, especially teams already using React | Games, AR, heavy hardware use, complex background work |
How much time and effort does each take?
Rather than a headline price, which depends on the features, here is how the choice changes the effort for the same app.
A worked example: a booking app for a Kerala business, with customer login, bookings, Razorpay payments, push notifications and a web admin panel for the team.
| Cross-platform (Flutter or React Native) | Native (Kotlin + Swift) | |
|---|---|---|
| Build | About nine weeks (45 working days) for both platforms | About twelve weeks for both platforms |
| People on the app | One mobile team | An Android developer and an iOS developer |
| Backend and admin panel | The same in both cases | The same in both cases |
| After launch | One codebase to update for new Android and iOS versions | Two codebases to update |
The backend and admin panel cost the same either way, so the saving from going cross-platform comes from the app screens themselves: they are built and tested once instead of twice.
For the six steps and what happens in each week, see how long it takes to build an app.
Will users notice the difference in performance?
For most business apps, no. Lists, forms, maps, payments and notifications run smoothly in both Flutter and React Native on today's phones, including mid-range Android phones common in India. Where native still pulls ahead:
- heavy animation and graphics, such as games or 3D product views;
- augmented reality;
- apps that do a lot of work in the background, such as continuous location tracking or audio processing;
- apps that talk to Bluetooth hardware all day.
Cross-platform apps are also a little larger to download than a minimal native app, which rarely matters on today's phones.
Can cross-platform apps use the camera, GPS and payments?
Yes. The common phone features are available in both Flutter and React Native through well-maintained plugins and libraries: camera, photo gallery, GPS and maps, push notifications, fingerprint and face unlock, file uploads, and in-app payments. Razorpay publishes official SDKs for both Flutter and React Native.
When a feature has no ready-made plugin, developers write a small piece of native code inside the cross-platform app. You don't have to choose all or nothing.
Flutter vs React Native: which is better?
Both are good choices for a business app. The practical differences:
| Flutter | React Native | |
|---|---|---|
| Language | Dart | JavaScript or TypeScript |
| How screens are drawn | Its own engine, so the app looks the same on every phone | The platform's own components, so it feels at home on each |
| Sharing code with a website | Flutter also runs on the web, but most teams build the website separately | Shares language and some code with a React website |
| Best when | You want a highly designed, consistent look across platforms | Your team or your website already uses React |
We build in both. For a new business app with no existing code, the deciding factor is usually the team's experience and whether there is a React website to share code with.
Who can maintain the app after launch?
Every app needs updates after launch: Android and iOS release new versions every year, the stores change their rules, and libraries get security fixes. With one cross-platform codebase, that work is done once. With native, it is done twice, by people with two different skill sets.
Both Flutter and React Native are widely used in India, so you will not be locked in to one agency. Ask for the full source code and the store accounts in your own name, whichever option you choose.
When is native worth the extra cost?
Choose native if one or more of these is true:
- the app is a game, or depends on heavy graphics, 3D or augmented reality;
- it works with Bluetooth devices or other hardware for long periods;
- it must do serious work in the background (continuous tracking, audio, sync);
- it needs new Android or iOS features the day they are released, or home-screen widgets and watch apps as core features;
- you already have native Android and iOS developers in-house.
If none of these apply, cross-platform is usually the better use of the budget.
What about a web app instead of a mobile app?
Sometimes a fast, mobile-friendly website or web app does the job without the stores at all, especially for internal tools or occasional use. We cover that choice separately; if customers will open your app every week, a store app is usually worth it.
An example from our work: DNA Learning
DNA Learning, a NEET coaching institute, needed more than a website: students take courses and tests, and the institute manages batches, teachers and results. We built the platform on the web and as an Android app, so students study on the phone they already carry. The Android app is built in React Native, the same React family as the Next.js web platform, so one team works across both and the two share the same way of building screens. Read the DNA Learning case study.
Frequently asked questions
Is Flutter better than native? For most business apps, Flutter delivers the same experience for users with one codebase instead of two, so it is faster to build and cheaper to maintain. Native is better for games, heavy graphics, deep hardware use and apps that need new platform features on day one.
Is Flutter or React Native better for a startup? Both suit startups, because one team builds both the Android and the iPhone app. Pick React Native if your team or website already uses React; pick Flutter if you want a highly designed, identical look on every phone.
Do cross-platform apps get approved on the App Store and Play Store? Yes. Flutter and React Native apps are reviewed and published like any other app, under your own developer accounts.
Can I switch from Flutter to native later? Yes, but it means rebuilding the app screens. Most businesses never need to. If you expect heavy graphics or hardware work from the start, choose native from the start.
How long does it take to build an app? A typical business app with a backend and admin panel takes about nine weeks (45 working days) cross-platform, and about twelve weeks native for both platforms. A basic app takes at least 40 working days (about eight weeks).
Planning an app? Wosag Tech builds Flutter apps, React Native apps and native Android and iOS apps, as an app development company in Calicut. Talk to us about your app.