Starting Android app development with a well-defined product objective and awareness of device variation sets the foundation. Outlining the MVP, choosing an architecture, and mapping essential user journeys early helps maintain a focused initial release and minimizes rework as the app scales.

Once the core is established, focus moves to consistent UI, performance, and compatibility across different OS versions and screen dimensions. Robust state management, meticulous networking, and dependable analytics/crash reporting simplify maintenance and iteration following the Google Play launch.