A free app for Android, by Buart.

What is Cycle?

Cycle is a free application to monitor and record the statistics of the human body and time, including:

• Heart Rate
• Sleep Duration and Quality
• Daily Activities
• Calories
• And more

In addition, you can find statistics on:

• Hair growth
• Nail growth
• The renewal of your skin and the amount of sweat you produce

Cycle comes with a simple, clean, and user-friendly interface that makes the application much easier to use. 

Download the app for completely free and know the statistics of your body and time.