Starting with a well-defined product goal and awareness of device variety is key in Android app development. Outlining the MVP, choosing an architecture, and mapping essential user journeys early keeps the initial release focused and minimizes changes as the app expands.

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