Starting with a well-defined product objective and awareness of device fragmentation sets the stage. Outlining the MVP, choosing an architecture, and mapping key user journeys early keeps the initial release focused and minimizes rework as the app expands.

Once the base is in place, focus shifts to UI consistency, performance, and compatibility across OS versions and screen sizes. Robust state management, careful networking, and reliable analytics/crash reporting make the app easier to maintain and iterate after release on Google Play.