Starting with a well-defined product objective and awareness of device variety sets the foundation for Android app development. Outlining the MVP, choosing an architecture, and mapping key user flows early helps keep the initial release focused and minimizes future rework as the app evolves.

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