Building an Android app starts with a defined product objective and awareness of device fragmentation. Articulating the MVP, choosing an architectural approach, and outlining key user flows early helps keep the initial release focused and minimizes rework as the app evolves.

Once the foundation is set, focus shifts to consistent UI, performance, and compatibility across OS versions and screen sizes. Robust error handling, thoughtful networking, and trustworthy analytics/crash reporting simplify maintenance and iteration after the Google Play launch.