This is a simple plank recorder which can help you to practice your abdominal muscles.
The plank (also called a front hold, hover, or abdominal bridge) is an isometric core strength exercise that involves maintaining a difficult position for extended periods of time. The most common plank is the front plank which is held in a push-up position with the body's weight borne on forearms, elbows, and toes.
All you do is to spend a few minutes to plank every day. And use the app to record your plank time. Then you will find that you can do plank longer and longer. Your abdominal muscles are getting stronger and stronger. And you are going to get more and more attractive.
Now download this app and use it to help you get more beautiful. It's free. Why not?