Registering an account with Peak is easy. After having downloaded and installed the app, you simply need to tap "Start training" to set up your very first account with Peak.
If you want to create an account for a family member or friend on the device that you use to play Peak yourself, you can do so. Just tap on the top left corner of the screen to access the Account & Settings menu (gear icon on iOS) and scroll down until you see "Logout." Tap on that option to go back to the main welcome screen.
You will then be able to tap on "Start training" to set up an account for this other player.