Designing iOS apps starts with clarity: identifying who will use it, the purpose it should serve, and the scenario to address in the initial release. A solid discovery phase clarifies the MVP scope, helps pick the right architecture, and avoids features that seem impressive on paper but don’t enhance real use.

After the foundation is defined, attention moves to how the UI behaves, performance, and reliability across different iPhone models and iOS versions. Consistent navigation patterns, thoughtful state management, and well-planned integrations (payments, authentication, analytics, and backend APIs) simplify maintenance and enable scaling once the app hits the App Store.