Sleep Cycle - Bio-alarm clock that wakes you up at optimal times based on your sleep patterns.

Barcode Alarm Clock - Alarm clock that won't stop ringing until you scan a barcode

Sleep as Android - Common alarm clocks ignore your sleep cycles, they wake you on schedule no matter your are currently in your deep sleep. Waking up from deep sleep is unpleasant, it makes you tired and it may negatively affect your productivity during the whole day.

WalkMe - WalkMe is a game-changing platform that instantly simplifies the online user experience.

Talalarmo - Minimalistic android alarm

Wakefy - Turn your Mac into a Spotify alarm clock.