Plank challenge BeStronger description

Plank is one of the most popular and effective exercises for the press all over the world. It forces not only the muscles of the abdomen and the shoulder girdle, but also the muscles of the entire body.
Go through the challenge to the end!
21 days and you can stand in plank for 5 minutes!
What? Too simple for you? So you can make your challenge!
Set your challenge of more than 20 kinds of plank, set the start time and pitch and your challenge is ready! You can create and save an unlimited number of challenges.

Application functions:
- The standard plank challenge scheme for 3 weeks
- You can create your own challenge
- Daily reminders
- Motivation (levels, statuses)
- Quick Stats
- History