The short answer
A phone app is not an adequate alarm if you cannot hear one. This guide covers bed-shakers, dedicated vibrating clocks and flashing alarms, with a clear account of the narrow cases where a phone helps and the many where it does not.
Comparisons
Alarm clocks for deaf and hard-of-hearing people
Bed-shakers, vibrating clocks and flashing alarms compared — and an honest account of what a phone app can and cannot do here.
8 min readNot published yet
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