Starting with a well-defined goal and awareness of device variety is essential for Android app development. Establishing the MVP, choosing an architecture, and outlining primary user journeys early keeps the initial launch focused and minimizes rework as the app evolves.

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