When comparing Gentle Alarm vs PocketBell, the Slant community recommends Gentle Alarm for most people. In the question“What are the best alarm clock apps for Android?” Gentle Alarm is ranked 4th while PocketBell is ranked 18th. The most important reason people chose Gentle Alarm is:
Any song in the library can be used as an alarm.
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Pros
Pro Can set songs as alarm sounds
Any song in the library can be used as an alarm.

Pro Wakes you gently from REM cycle
Throughout the night, depth of sleep constantly fluctuates. Gentle Alarm monitors movement and infers how deep the user is sleeping. When there is a lot of movement, it indicates that the REM cycle is ending, and the alarm will go off.
Pro Morning tasks
Once the alarm goes off, daily tasks will be displayed.

Pro Online radio and MP3 alarms
Your favorite sound will get you out of bed!
Choose from one of your mp3-files or from thousands of radiostations, sorted by country.
One quick swipe turns the alarm clock into a radio-player if you want to keep listening.

Pro No ads, no frills!
PocketBell is, and will always be, completely ad-free.

Pro Materialdesign - Easy and fast setup
This alarm clock was designed for a maximum of simplicity and a minimum of needless features.
An intuitive and easy alarm setup with simple gestures allows setting up alarms in seconds.
The gesture controlled setup of recurrent alarms has never been easier.

Pro Smart motion control
Feels like magic, when a simple move of your phone dismisses the alarm.
Flip it, shake it or lift it. - and this alarmclock will respond in a way you want it to.
Dismiss, snooze or go-silent.
Cons
Con Looks like abandonware
Con Not free
This alarm clock application costs $1.99.
