The Vtagger Fitness app allows members of a sports center affiliated with the Vtagger Fitness platform to view information on their subscription to the sports center, send messages to the sports center, access the center, where access is manned by a turnstile or electric lock controlled by the vtagger platform. To access the app you must have an active subscription at a sports center affiliated with the Vtagger Fitness platform, enter the telephone number communicated to the center and set a password. The feature of accessing the center via the app can only be activated if the sports center has signed up to this feature, using the GPS of your smartphone and within a distance of 30 meters from the gate to be opened.