Native Swift or cross-platform: decided per app, not by habit
Native Swift gives you the full platform: the smoothest animation, immediate access to new iOS features, deep use of the camera, sensors, widgets and background tasks. It is the right call when the app itself is the product and it lives or dies on how it feels.
When the same app must also ship on Android and the experience is mostly forms, lists and account screens, Flutter or React Native share one codebase across both platforms and cut the cost of every future feature. We recommend one or the other after looking at your features, not before.
Built to pass App Store review the first time
Apple rejects apps for reasons that are avoidable when they are planned for: vague permission prompts, sign-in without Sign in with Apple where it is required, in-app purchases routed around Apple's payment rules, crashes on older devices, or privacy details that do not match what the app actually collects.
We work through those rules while building rather than after submission, prepare the privacy labels and review notes, and handle the submission itself — so launch day is not spent answering a rejection email.
What we have shipped on iOS
For a multi-location gym chain we built the member app in React Native for iPhone and Android, connected to the chain's CRM, QR-code entry gates and kiosk payments on AWS. Members book, pay and enter the club from the same app, and staff see the same record the moment it changes.
The lesson that carries into every iOS project: the app is the visible tenth of the system. Most of the work — and most of what makes the app feel fast — sits in the API, the data model and the integrations behind it.
Performance, security and the updates after launch
We profile on real iPhones, including older models your customers still carry, and fix what slows startup or drains battery. Tokens live in the iOS Keychain, network traffic is encrypted and pinned where the data warrants it, and APIs check every request rather than trusting the app.
Each year Apple ships a new iOS and new devices, and each year some apps break or look dated. Maintenance covers those updates, crash monitoring and small improvements, so the app keeps its rating instead of slowly losing it.
