I think when looking for free fitness software APPs, you can choose apps such as Keep, Fit Personal Trainer, Daily Yoga, Hot Fitness, and Mint Health.

They offer a wealth of fitness features and content suitable for users of all fitness levels.

These software not only have simple and easy-to-use interfaces, but also provide personalized fitness plans and guidance to help users better master fitness skills and achieve fitness goals.

When choosing, you can choose according to your own needs and preferences, and use the resources provided by these software to improve your fitness results and health level.