How I Built an iPhone Theft Detection System Using Motion Sensors and Screen Time APIs

Programming Tech Brief By HackerNoon · May 27, 2026 · 5m

This story was originally published on HackerNoon at: https://hackernoon.com/how-i-built-an-iphone-theft-detection-system-using-motion-sensors-and-screen-time-apis. How I built phone snatch detection for iOS using accelerometer, Screen Time API, and a background location hack. No ML, no hardware. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #mobile-app-development, #ios-app-development, #swiftui, #mobile-security, #theft-detection-software, #ios-background-tasks, #cmmotionmanager, #iphone-security, and more…