If you are planning a mobile app, one of the first technical decisions is whether to build it cross-platform — one codebase that runs on both iOS and Android — or natively, with a separate app for each platform.
Flutter, Google's cross-platform framework, has become the most common choice for new business apps. But native still wins in some cases. Here is how to decide.
What the two approaches mean
- Native means writing the iOS app in Swift and the Android app in Kotlin. Two codebases, often two teams, built with each platform's own tools.
- Flutter means writing the app once in Dart. Flutter draws its own interface, so the app looks and behaves the same on both platforms, and it compiles to fast native code.
React Native is the other popular cross-platform option. The trade-offs below apply to it broadly too.
Where Flutter wins
- Cost and speed. One codebase means one team and one set of features to build and test. For most business apps, this is the biggest factor.
- Consistent design. Your app looks identical on every device, which keeps your brand tight.
- Faster iteration. New features ship to both platforms at the same time, and hot reload makes development quick.
- Good performance. For typical business apps — booking, eCommerce, dashboards, content, chat — users will not notice a difference from native.
Where native still wins
- Deep platform features. Apps that lean heavily on the latest iOS or Android capabilities, widgets, wearables, or complex background processing are easier to build natively.
- Heavy graphics or real-time processing. Advanced camera work, AR, audio processing and games often benefit from native code.
- Very large, long-lived products. Big companies with dedicated iOS and Android teams sometimes prefer native for full control.
Note that Flutter can call native code when it needs to, so a single platform-specific feature rarely forces a fully native build.
A simple decision guide
| Your situation | Our usual recommendation |
|---|---|
| First version of an app, need both iOS and Android | Flutter |
| Tight budget or launch deadline | Flutter |
| App is mostly forms, lists, payments and content | Flutter |
| App depends on advanced camera, AR or hardware features | Native |
| You already have a strong in-house iOS or Android team | Native |
Questions to answer before you decide
- Do you need both platforms at launch, or can you start with one?
- Which device features does the app truly depend on?
- What is your budget for the first version, and for the year after?
- Who will maintain the app — your team or an agency?
Our take
For most startups and businesses building their first app, Flutter is the right default: you reach both app stores faster and for less money, and you can still drop down to native code for the few features that need it.
We build both Flutter and native apps. If you are unsure which fits your idea, book a free scoping call and we will give you a straight recommendation with a cost estimate for each.
