1. Push-ups (produced by Runtastic) self-weight training direction. This should be the earliest fitness app I used. It helps you shape your chest muscles through grouping, steps and rest time, and breaks through the bottleneck of push-ups, which coincides with the view of bodybuilding. At that time in high school, I didn't know what bodybuilding was, what aerobic and anaerobic exercise was, and what self-esteem training was. I just found out who did more push-ups in the competition between boys, so I downloaded it on my mobile phone and practiced it in my room the next night during self-study. That was the first time I broke through 50 push-ups in two minutes. The interface is simple and beautiful, with rich reward settings (some cool titles and medals). In addition, the records still exist after the latest update and can be synchronized. It is suitable for students who prefer traditional weight-bearing events (push-ups, squats and pull-ups), avoiding the shortage of venues and equipment, and can practice squats and pull-ups all at once with Runtastic products, with the same return. 2. Touch coordination: GSP self-weight training direction, and some movements need to be matched with elastic rope. This action was demonstrated by UFC player George Saint Pierre, as well as his physical fitness teacher and nutritionist's video explanation and some production methods of proteinshake. At present, all 526 fitness programs have been unlocked. It can be said that the self-weight training action in Touchfit is the most novel and challenging I have ever seen! ! ! Completely change my dull impression of self-respect training, and pay attention to learning movements before each training. Suitable for students with a certain foundation and die-hard George Saint Pierre. 3.Passion4ProfessionInc is self-esteem and bodybuilding. P4P Studio has produced four softwares: abdominal exercises, chest exercises, hip exercises and leg exercises. Its training movements, exciting angles, detailed animations and various training plans. Personally, I think it is good to exercise chest muscles and other parts with this software, which is suitable for beginners (self-weight training).