Starting with a clear understanding of who will use the app, what task it should accomplish, and which scenario must be addressed in the initial release sets the direction. A thorough discovery phase helps define the MVP boundaries, select the appropriate architecture, and avoid features that seem impressive on paper but don’t enhance actual usage.

After laying the groundwork, attention turns to the UI behavior, performance, and reliability across different iPhone models and iOS versions. Uniform navigation patterns, careful state handling, and well-planned integrations (payments, authentication, analytics, backend APIs) make the product easier to maintain and scale after it goes live on the App Store.