Starting Android app development with a well-defined goal and awareness of device variety sets the foundation. Establishing the MVP, choosing an architecture, and outlining essential user flows early keeps the initial release focused and minimizes rework as the app expands.

Once the core is established, focus moves to UI uniformity, 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 launch on Google Play.