Building an Android app starts with a well-defined product goal and awareness of device variety. Outlining the MVP, choosing an architectural approach, and mapping key user flows early keeps the initial release focused and minimizes rework as the app expands.

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