Sworkit Apps workouts are designed for beginner, intermediate, or advanced options. The programs use a variety of exercises to increase the difficulty. However even the more challenging advanced workouts were quite simple and relatively easy. It is very good, but it doesn't dynamically adjust to fit your fitness level, with that app you rate how hard each exercise was for you to complete or wether it was too tough to complete at all, and the workouts automatically become tailored to your abilities.