Plank Challenge is a mobile app that helps you lose weight and build muscle by performing a simple exercise.

The app provides daily workouts, which you can do at home or in the gym. Each workout requires no equipment, and you can perform it anytime, anywhere.

Plank Challenge is easy to use and doesn't require any equipment, so you can easily start using it right away. You only need to follow the exercise instructions, which are easy to understand and easy to follow.

The workouts are designed to be done in a comfortable position, and they don't require any equipment or fitness equipment. You can use the app in the way that suits you best.