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 keeps the initial release targeted and minimizes rework as the app evolves.

Once the foundation is established, focus moves to UI uniformity, performance, and compatibility across OS versions and screen dimensions. Robust state management, prudent networking, and trustworthy analytics/crash reporting simplify maintenance and iteration after the Google Play launch.