Building an Android app starts with a well-defined product objective and awareness of device variety. Establishing the MVP, choosing an architecture, and outlining key user journeys early keeps the initial release focused and minimizes rework as the app expands.

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