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 helps concentrate the initial release and minimizes rework as the app scales.

Once the foundation is established, focus moves to a cohesive UI, optimal performance, and compatibility across OS updates and diverse screens. Robust state management, prudent networking, and dependable analytics/crash reporting simplify maintenance and iteration following the Google Play launch.