Starting with a well-defined product goal and awareness of device fragmentation lays the foundation for success. Outlining the MVP, choosing an architecture, and mapping key user flows early helps keep the initial release focused and minimizes rework as the app expands.

Once the groundwork is set, focus moves to consistent UI, performance, and compatibility across OS versions and screen sizes. Robust state management, careful networking, and dependable analytics/crash reporting simplify maintenance and iteration after launching on Google Play.