Starting with clarity about who will use the app, what problem it should solve, and which scenario the initial release must tackle. A robust discovery phase helps outline the MVP, pick an appropriate architecture, and skip features that seem impressive on paper but don’t enhance actual usage.

With the base established, attention moves to how the UI behaves, speed, and reliability across various iPhone generations and iOS updates. Uniform navigation, prudent state handling, and thoughtfully planned integrations (payments, authentication, analytics, backend APIs) help keep the product maintainable and scalable after it goes live in the App Store.