Android app development starts with a clear goal for the product and an understanding of the variability across devices. Defining the MVP, choosing an architectural approach, and planning key user flows early keep the initial release focused and reduce rework as the app grows.
Once the foundation is in place, the focus moves to UI consistency, performance, and compatibility across different OS versions and screen sizes. Robust state management, careful networking, and reliable analytics and crash reporting make the app easier to maintain and iterate on after it hits the Google Play store.