Calisthenics can be adjusted to EVERY level of skill and strength due to the vast variety of exercises and scales.

Getting a complete weekly training program suitable to your abilities & goals The option to get feedback and help all around the training week Training wherever suits you best whenever optimal time that possible for you. Learn the skill of self-training.

Muscular hypertrophy depends only on the total volume (sets*reps*load). As long as you get enough training volume with sufficient load during the training week you will experience muscle growth regardless of the type of the resistance training method. Worth mentioning: calisthenics can provide high-resistance loads to the upper body, not less than can be attained on powerlifting.