Building an Android app starts with a well-defined objective and awareness of device variety. Outlining the minimum viable product, 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 moves to UI uniformity, performance, and compatibility across different OS versions and screen dimensions. Robust state management, prudent networking, and dependable analytics/crash reporting simplify maintenance and iteration after the Google Play launch.