Building an Android app starts with a well-defined goal and awareness of device variety. Outlining the MVP, choosing an architecture, and mapping key user journeys 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 screen sizes. Robust state management, prudent networking, and dependable analytics/crash reporting simplify maintenance and iteration after the Google Play launch.