Starting with a well-defined goal and an understanding of device diversity, define the MVP, choose an architecture, and map out core user flows early to keep the initial release focused and minimize rework as the app evolves.

Once the foundation is in place, the focus shifts to a consistent UI, performance, and compatibility across different OS versions and screen sizes. Robust state management, careful networking, and dependable analytics and crash reporting make the app easier to support and iterate on after it launches on Google Play.