Starting with clarity is essential when building iOS applications: identifying the target users, defining the app's purpose, and deciding which problem must be solved in the initial release. A thorough discovery phase helps scope the MVP, select the proper architecture, and avoid features that look impressive on paper but don’t improve real usage.

After the foundation is in place, attention turns to interface behavior, performance, and reliability across iPhone models and iOS versions. Uniform navigation patterns, careful state handling, and well-planned integrations (payments, authentication, analytics, backend APIs) simplify maintenance and enable growth after the App Store launch.