Practical guide · Updated July 25, 2026
How to create an iOS app from an existing product
You can create an iOS app from a working web product without automatically rebuilding everything in Swift.
On this pageDefine the mobile outcomeChoose the runtimeCreate a reproducible signed buildTest and submit
Define the mobile outcome
List the mobile-only requirements: notifications, camera, purchases, deep links, offline behavior and App Store distribution.
Choose the runtime
Use a wrapper for a mobile-ready web UX, React Native or Flutter for a deeper mobile product, and Swift where platform-specific behavior demands it.
Create a reproducible signed build
Set the bundle identifier, capabilities, certificates and provisioning. The release must build outside a temporary preview environment.
Test and submit
Test on real devices, complete App Store Connect metadata and privacy, use TestFlight, then submit with reviewer credentials and notes.