Which is better:
Keep software is aimed at users who have just started fitness and have a slow pace. At the same time, it will let you experience the fun of fitness slowly and stick to it.
Keep: Training is richer than being hot. You can make your own courses and so on.
Hot fitness is more suitable for users with certain fitness experience, and the courses are very rich, updated every week, and the fitness guidance is very detailed.
I suggest that users who have just started fitness can use keep. If they have some experience, I suggest using hot fitness.