You can get to know myTuur and, depending on what is enabled for your account, also use parts of it without a full account. For a more personal experience and persistent settings, a user account is helpful.
For the most important features, these permissions are especially useful:
Location: for content near you, navigation and the Discover Tour
Microphone: if you use voice-related features
Motion and fitness: for steps, distance and health sync in the Discover Tour
myTuur still works without individual permissions, but some features will be limited or less precise.