Aiyue is to drive more users to the gym to experience fitness services by tapping the influence and coverage of the Internet. Enhance the image and reputation of the gym; By signing the contract, people who participate in the contract can better realize the fitness plan. Let more people experience the challenge, interest and significance of contract fitness conveniently and quickly, and let those who participate in the plan have more fitness motivation. And through the form of negative incentive fees, help more users realize their fitness dreams.