App Clips

This is your reference when you need to build an iOS App Clip, the lightweight instant-launch experiences that appear from NFC tags, QR codes, Maps pins, or Safari banners. It walks through the full lifecycle: setting up the separate Xcode target with the right bundle ID suffix, handling NSUserActivity invocation URLs, configuring experiences in App Store Connect, staying under the 10-15 MB size limit (or 100 MB on iOS 17+ for digital-only invocations), and migrating user data to the full app via shared App Group containers. The capability constraints and common mistakes sections are worth skimming before you start. Useful if you're wiring up in-the-moment experiences or need the full app to seamlessly take over when installed.