Building Android apps starts with a definite goal and awareness of device fragmentation. Outlining the MVP, choosing an architecture, and mapping key user journeys early keeps the initial release targeted and minimizes rework as the app expands.

Once the foundation is set, focus moves to UI coherence, speed, and compatibility across OS revisions and various screens. Robust state management, prudent networking, and dependable analytics/crash reporting simplify maintenance and iteration after launch on Google Play.