Starting Android app development with a well-defined goal and awareness of device variety sets the direction. By outlining the MVP, choosing an architecture, and mapping key user flows early, you keep the initial release focused and minimize rework as the app evolves.

Once the foundation is set, focus on UI consistency, performance, and compatibility across different OS versions and screen sizes. Robust state management, careful networking, and dependable analytics/crash reporting simplify maintenance and iteration after publishing on Google Play.