Building Android apps starts with a well-defined product objective and awareness of device variety. Clarifying the MVP, choosing an architecture, and mapping essential user paths upfront helps keep the initial release focused and minimizes rework as the app evolves.

With the foundation established, focus moves to UI uniformity, performance, and compatibility across different OS versions and display sizes. Robust state management, prudent networking, and dependable analytics/crash reporting simplify maintenance and iteration following the Google Play launch.