Starting Android app development with a well-defined product goal and awareness of device variety is key. Establishing the MVP, choosing an architectural approach, and outlining essential user journeys early on keeps the initial release targeted and minimizes rework as the app expands.

With the foundation established, focus moves to UI consistency, performance, and compatibility across different OS versions and screen dimensions. Robust state management, prudent networking, and dependable analytics/crash reporting simplify maintenance and iteration after deployment on Google Play.