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

Once the foundation is set, focus moves to UI consistency, performance, and compatibility across OS versions and screen dimensions. Robust state management, prudent networking, and trustworthy analytics/crash reporting simplify maintenance and iteration after launch on Google Play.