YOFITT

Yofit is a mobile application accessible to all, sportsmen can indeed have a pass with multi-gym access and different sports activities, without commitment.
With your credits you can do a yoga class in one place, a boxing class in another, go to the tennis court very easily.
It's often cheaper than going directly to the gym, and sometimes it gives you access to gyms that don't let people in without a membership.

They have more than 40 partners and offer more than 1000 classes per week. Prices of one class depends on the kind of class and location.
A really nice application.