Building an Android app starts with a definite product objective and awareness of device variety. Outlining the MVP, choosing an architecture, and mapping key user flows early keeps the initial release targeted and minimizes rework as the app expands.

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