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

Once the core is established, focus moves to UI consistency, performance, and compatibility across OS versions and screen sizes. Robust state management, careful networking, and dependable analytics/crash reporting simplify maintenance and iteration after the Google Play launch.