Building an Android app starts with a well-defined goal and awareness of device variation. Establishing the MVP, choosing an architecture, and outlining key user journeys early keeps the initial release focused and minimizes rework as the app expands.

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