Building Android apps starts with a well-defined product goal and awareness of the variety of devices. Clarifying the MVP, choosing an architecture, and outlining key user flows early helps keep the initial release focused and minimizes rework as the app expands.

With the foundation established, focus moves to UI consistency, performance, and compatibility across operating system versions and screen sizes. Robust state management, thoughtful networking, and dependable analytics/crash reporting simplify maintenance and iteration after the Google Play release.