Building an Android app starts with a well-defined product goal and awareness of the variety of devices. Outlining the MVP, choosing an architecture, and mapping key user journeys early keeps the initial release focused and minimizes rework as the app evolves.

With the foundation set, focus moves to UI consistency, performance, and cross-version and screen-size compatibility. Robust state management, thoughtful networking, and dependable analytics/crash reporting simplify maintenance and iteration after the Google Play launch.