What are some alternatives?
When comparing Gentle Wakeup and Sleep Cycle Alarm Clock, you can also consider the following products
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.
Free Alarm Clock - Free Alarm Clock is a free, full-featured and user-friendly computer alarm clock for Windows.
SleepBot - SleepBot is a sleep tracking app available in Google Play and the Apple App Store.
Sleep Time - Alarm Clock - Sleep Time provides insight into your sleep patterns. By tracking your level of movement throughout the night, Sleep Time generates customized sleep data in easy-to-read charts.
Alarm Klock - A better alarm clock.
Alarmy - World's most annoying alarm app