Once you have downloaded the app, you'll want to create your account. This can be done in the app, or online at app.thesufferfest.com. Tap the Create an Account link on the login page to get started.
The screens that follow will gather some information that will be helpful in setting up your rider profile.
Once your profile is complete, you'll be able to take a Tour of the App. Without a subscription, you will be able to browse the app, but you will not be able to complete a workout. This will require a valid trial or subscription. For more details, please see Starting a Free Trial on iOS.