Starting Android app development with a well-defined goal and awareness of device variety is essential. Outlining the MVP, choosing an architecture, and mapping key user journeys early keeps the initial release targeted 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, prudent networking, and dependable analytics/crash reporting simplify maintenance and iteration after publishing on Google Play.