Starting with a well-defined product aim and an understanding of device diversity sets the stage. Defining the MVP, choosing an architecture, and mapping key user flows early keeps the initial release focused and minimizes rework as the app evolves.
Once the foundation is set, focus shifts to UI consistency, performance, and compatibility across OS versions and screen sizes. Robust state management, careful networking, and dependable analytics/crash reporting make maintenance and iteration easier after the launch on Google Play.