Starting with a well-defined product objective and awareness of device variety sets the foundation for Android app development. Clarifying the MVP, choosing an architectural approach, and outlining key user journeys upfront keeps the initial release focused and minimizes revisiting work as the app scales.

Once the core is established, focus moves to a cohesive UI, performance, and ensuring compatibility across different OS versions and display dimensions. Robust state management, thoughtful networking, and dependable analytics/crash reporting simplify maintenance and iteration after launching on Google Play.