Setting up Apple developer account depends on how is your fitness business setup.
If your business is registered as an LLC, S-Corp, or C-Corp then you should setup organization Apple developer account.
If you are a sole proprietor then you should setup your Apple developer account as an individual.
Please follow the appropriate link below to see step by step instructions:
Note: Apple charges $99/year to enroll in the Apple developer program. This fees is directly charged by Apple.