iOS app development: building for iPhone and iPad the way Apple expects
iPhone users expect polish, privacy and speed, and Apple’s review enforces it. A guide to native iOS development in Swift and SwiftUI — from architecture and device features to App Store review and TestFlight — and what to have ready before starting.
iOS is a smaller share of devices than Android in Romania but a disproportionate share of spending, and in many B2B and medical contexts the iPad is the device on the desk. Native iOS development in Swift and SwiftUI gives the experience iPhone users expect — fast, consistent with the platform, respectful of privacy — and access to everything the hardware offers, from the camera and Face ID to Apple Pay and HealthKit.
What iOS development includes
- Architecture — a Swift codebase with SwiftUI, clean separation of layers, offline persistence where needed, and automated tests.
- Platform features — push notifications through APNs, Sign in with Apple, Apple Pay, camera and document scanning, Bluetooth, maps, widgets, biometrics.
- Privacy and security — permission flows designed for Apple’s rules, data minimisation, encrypted storage, App Tracking Transparency where relevant.
- Quality — real-device testing across iPhone and iPad sizes, TestFlight beta rounds, crash and performance monitoring.
- App Store — developer account set-up, listing and screenshots, review preparation (the most common cause of delay), staged release and updates.
- Enterprise — Apple Business Manager and MDM distribution for company devices.
Typical projects
Customer apps for ordering, booking and loyalty; clinical and professional tools on iPad; companion apps for connected products; internal apps for sales and service teams.
What to prepare
- An Apple Developer account, or the decision to open one.
- The device mix: iPhone only, iPad, both.
- Integrations and data sensitivity.
- Brand assets and any existing design.
See the iOS app development page.