FitYo is an app skeleton that will help you build a fitness app easily and quickly. The project is completely written in Swift. It supports Xcode 7 and iOS 9 (or up).
This app template should save you thousands of dollars. To build a similar app like this, it will cost you over $10000 to hire an iOS developer. Even if you know Swift or Objective-C, the app template will save you 100+ hours from building the app from scratch.
You just need to set a parameter in the configuration file to choose your preferred theme. With a few tweaks, you'll have an app with your own design.
This is the iPhone package of FitYo. You're allowed to use the app template in your personal project to build and release one app to the App Store.
To learn more about the app, check out the official website: