Almost useful
Needed an app to keep me from dozing off App cannot detect when I have done that, unfortunately, so next best thing is to repeat a timer like a snooze alarm. Would be of use if it had an Apple Watch component, but sadly it does not!!
Needs or more intense or alternate vibrations. For narcolepsy.
Good app but need a bit more in wake ups if I fall asleep in a chair vibration won’t wake me. Need strong sound. Maybe Bluetooth to speakers.