Snatch Guard – iOS theft detection with accelerometer and Screen Time

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I got frustrated hearing about phone snatching in London - thieves grab unlocked phones and immediately access banking apps, messages, photos. Android has had Theft Detection Lock since 2024 while iOS still has nothing.Apple's Stolen Device Protection delays password changes but doesn't touch the content of an unlocked phone. So I wired a few things together:- CMMotionManager at 20Hz for grab detection. I tried CMMotionActivityManager first - total waste of time. It reports "Unknown" instead of "Running", flickers between states and has a much bigger delay.- FamilyControls + ManagedSettings for system-level shields. As there's no way to lock the phone programmatically I came up with the idea

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Website: snatchguard.app