Starting with clarity is essential when building iOS applications: identify the users, define the app’s purpose, and determine the scenario to address in the initial release. A thorough discovery phase helps define the MVP scope, select the right architecture, and avoid features that look good on paper but don’t improve actual usage.

Once the foundation is in place, attention moves to the UI behavior, performance, and reliability across various iPhone models and iOS versions. Consistent navigation schemes, robust state management, and well-planned integrations (payments, authentication, analytics, backend APIs) simplify maintenance and scalability after the App Store release.