Clarify who will use the app, what job it should do, and which scenario must be addressed in the initial release. A thorough discovery phase helps define the MVP scope, select the right architecture, and avoid features that seem impressive on paper but don’t improve actual usage.

After laying the foundation, attention turns to interface behavior, performance, and stability across iPhone models and iOS versions. Consistent navigation patterns, careful state management, and well-planned integrations (payments, authentication, analytics, backend APIs) make the product easier to maintain and scale after the App Store kickoff.