A free program for Android, by Komorebi Inc..

SmartDiet – weight tracker is the easiest, most secure and convenient way to keep track of your weight loss. This tool lets you easily enter your body measurements, weight and body fat percentage. 

Besides, you can choose to add a date, a note or other information to help you keep track of your progress and stay motivated. In addition, you can customize the fields in order to keep everything simple. The app will also automatically calculate the body fat percentage for you.

The tool is also designed to help you get in shape and lose weight. And with the daily graph, you can check your progress with a simple tap.

This application is completely free to use, with no ads.