Building Android apps starts with a well-defined product objective and awareness of device variety. Articulating the MVP, choosing an architecture, and mapping essential user journeys early keeps the initial release focused and minimizes rework as the app scales.

Once the foundation is set, focus moves to UI consistency, performance, and compatibility across different OS versions and screen sizes. Robust state management, careful networking, and trustworthy analytics/crash reporting simplify support and iteration after launch on Google Play.