Starting with a well-defined product objective and awareness of device variety is essential 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 scales.

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