Boost is an app for members in gyms connected to BoostSystem. In this app you can book classes, open the front door, and see all information linked to your gym membership. You can access: - Door opener. No more access cards. Open the door directly from the app. - My profile. A history of all your payments, bookings, and visits. - Booking. Book your future classes in the app. - Center information. Get an overview of when the center is crowded and when there is plenty of space. Contact information.