Most mobile projects fail somewhere other than the code. They fail because the app assumed a good connection, or drained the battery, or asked for six permissions on first launch, or spent three weeks bouncing off App Store review for something that could have been avoided at design time. We build with those failure modes in front of us rather than behind us.
The first real decision is native versus cross-platform, and it depends on what your app has to do. React Native or Flutter gives you one codebase across both stores, faster iteration and a lower cost — the right answer for most business apps. Swift and Kotlin are worth the extra when you need heavy graphics, sustained background processing, deep hardware access or platform-specific performance. We'll tell you which one your requirements actually call for, including when that answer is a progressive web app and not an app at all.
From there we design for the device: offline-first data where the network can't be trusted, permission requests asked in context rather than at launch, thumb-reachable navigation, and battery-aware background work. Then we take it through submission ourselves — store listing, screenshots, privacy declarations, review responses — because getting rejected is a scheduling problem you shouldn't have to learn about the hard way.