Starting Android app development with a well-defined goal and awareness of device variability. Pinpointing the MVP, choosing an architecture, and mapping key user journeys upfront keeps the initial release focused and minimizes rework as the app expands.

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