A highly customizable app that can set alarms to only go off at specific locations or require you to solve puzzles to silence them.
If you want to shock your system into wakefulness, you need sounds that the human brain is biologically hardwired to find distressing. download worst alarm
Some apps, like the Loud Alarm Clock , come pre-loaded with sounds specifically chosen for their irritating qualities, such as nails on a chalkboard. Top Apps with "Worst" Alarm Features A highly customizable app that can set alarms