FINDERR — Lock Screen Contact

Lost your phone in a taxi? Left it at a hotel? FINDERR turns your Android lockscreen into a recovery tool — showing your emergency contact info and a scannable QR code that anyone who finds it can use to reach you. Unlike Find My Device, which shows YOU where your phone is, FINDERR shows THE FINDER how to return it. When someone picks up your lost phone, they scan the lockscreen QR and instantly get a page to contact you — no app to install and no account needed on their side. How it works: the moment your phone goes missing, log into FINDERR from any browser (a friend's phone, a laptop) and remotely activate the emergency screen. Nothing to touch on the lost device — that's the free tier. Premium adds remote contact updates (change the phone number or email a finder sees, on the fly) and, on the direct-download version, SMS commands that trigger it all by text with no dashboard login. Android-only, free on Google Play. Built solo by UNTRAPD.