Starting Android app development with a well-defined product goal and awareness of device variety. Outlining the MVP, choosing an architecture, and mapping key user flows early keeps the initial release focused and minimizes rework as the app scales.

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