Building an Android app starts with a well-defined goal and awareness of how varied devices are. Specifying the MVP, choosing an architecture, and mapping key user flows early keeps the initial release tightly scoped and minimizes rework as the app expands.

Once the foundation is set, focus moves to UI consistency, performance, and compatibility across different OS versions and screen sizes. Robust state management, careful networking, and dependable analytics/crash reporting simplify maintenance and iteration after the Google Play launch.