The opportunity to book the workouts is released 1 week before the training session, the workouts can be booked up to 5 minutes before the start. You can book several passes at a time, but if you do not show up 3 times on booked passes, you will be suspended for seven days. To register as arriving you have to check in with the app. Check-in can be done even at the start time of the passport. If you know you will not attend, you must book your workout no later than 2h before the training.