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 targeted and minimizes rework as the app expands.

Once the foundation is established, focus shifts to a consistent UI, performance, and compatibility across different OS versions and screen sizes. Robust error handling, careful networking, and dependable analytics/crash reporting simplify maintenance and iteration after launching on Google Play.