If you ask the internet whether to build your mobile app cross-platform or native, you will get five thousand opinions and no useful framework. We ship enough mobile work — including Animal Findr's cross-platform marketplace — to have a concrete way to decide.
Five questions, in this order
1. How much of the app is platform-specific hardware? Heavy camera processing, AR, advanced Bluetooth, audio routing, Apple Watch / Wear OS companions — the more of this you have, the more native pays back the cost. A delivery-tracking app with a map, a few forms, and push notifications does not.
2. How fast do you need to ship to both stores? Cross-platform halves the iOS-plus-Android shipping cost for most apps. If you have a market window and a small team, that math is decisive.
3. How big and skilled is the team that has to maintain this for five years? Native iOS plus native Android = two codebases, two skill sets, two release pipelines. If your long-term team is one or two engineers, cross-platform is not just cheaper to build — it is the only path that survives.
4. How much does perceived performance matter vs raw performance? Modern React Native and Flutter look indistinguishable from native to the user in 90 percent of apps. The other 10 percent are games, video editors, and audio-first tools where every frame is measured.
5. Are you already invested in a native ecosystem? A SwiftUI shop building their tenth iOS app should not switch to Flutter for one cross-platform feature. Continuity of tooling and hiring is worth more than the framework comparison.
Our default, and when we break it
For most projects that come to us, the answer is React Native with TypeScript: one codebase, one team, two app stores, and AI integration paths that work the same on both sides. We break that default when questions 1 or 4 above answer strongly toward native, or when a client's existing team is purely Swift or purely Kotlin.
There is no universally correct answer. There is a correct answer for your specific app, and it falls out of those five questions in about fifteen minutes.