QRAlarm, Android alarm clock application that lets the user turn off alarms by scanning the QR Code:

QRAlarm, Android alarm clock application that lets the user turn off alarms by scanning the QR Code:
* https://github.com/sweakpl/qralarm-android
* https://f-droid.org/packages/com.sweak.qralarm/
* https://apt.izzysoft.de/fdroid/index/apk/com.sweak.qralarm/
* https://play.google.com/store/apps/details?id=com.sweak.qralarm
* Pro version (not sure if equal to or better than FOSS): https://play.google.com/store/apps/details?id=com.sweak.qralarm.pro