Cost / License
- Free
- Proprietary
Platforms
- Android
- iPhone
- Apple Watch
- Android Wear
South Korea



Sites and apps similar to Sleep Calculator include Sleep as Android, which has a free version. Other options are Sleep Cycle Alarm Clock, ShutEye, Pokémon Sleep and SleepRecovery. There's no shortage of Alarm Clocks like Sleep Calculator, with more than 25 alternatives for iPhone, Android, iPad and Mac.



Sleep Timer lets you fall asleep to your favorite music. You simply start your music, and then set the countdown timer. At the end of the countdown, Sleep Timer softly fades your music out and stops it. Allowing you to get your precious sleep and stops your battery from draining.



Use Sleep Calculator to find the best time to go to bed or wake up based on 90-minute sleep cycles. Calculate REM sleep, ideal sleep time, and wake up refreshed.

r3app has launched Alarmr for Android. This modern world clock app transcends beyond the barriers of a typical alarm. It provides a host of cutting-edge features such as sleep timer, weather, news and world clock.



