Starting with a well-defined product goal and awareness of device variety sets the direction for Android app development. Outlining the MVP, choosing an architecture, and mapping key user journeys early ensures the initial release stays focused and minimizes rework as the app expands.

Once the foundation is laid, focus moves to a cohesive UI, performance, and compatibility across different OS versions and screen dimensions. Robust state management, thoughtful networking, and dependable analytics/crash reporting simplify maintenance and iteration after the Google Play launch.