Booking system for gyms and group classes
Run capacity-limited group classes, sell membership passes, and let members book their own spot — from any phone, anytime.
First month free, then €4.99 per month. Cancel anytime.
calenda is a booking system for gyms and studios: group classes, capacity, waitlists, passes, trainers and recurring timetable slots. Try the demo without signing up and get your first month free when you create your own business page.
Tools for running your business every day.
Group classes with capacity and waitlists
Set a maximum number of spots per class. Once it fills up, the next members join a waitlist automatically and get notified the moment a place opens. No overbooked rooms, no penciling people into a list by hand.
Membership passes and class packs
Sell 10-class packs, monthly or seasonal passes. The system deducts a credit on every booking and each member sees their remaining balance. Add gift vouchers and discount codes to launch new courses.
Multiple trainers and locations, one calendar
Every trainer gets their own schedule, photo, and services; clients can pick a specific instructor or leave the choice to you. The multi-location calendar shows all studios and rooms at once so classes never clash.
Recurring slots and a fixed timetable
Set up regular classes (say, yoga every Monday at 6 PM) once and calenda generates them ahead of time. Handle closed days and holidays in one click, so no one signs up for a session that won't run.
Fewer no-shows, happier members
Automatic email and SMS reminders cut absences, no-show tracking flags repeat offenders, and an optional deposit or QR payment keeps spots for people who actually turn up. After class, members can rate a specific trainer ★.
FAQ
How much does calenda cost for a fitness studio?
Your first month is free, then calenda costs €4.99 per month. No commission on bookings and no lock-in.
How does the waitlist work when a class is full?
Once capacity is reached, the next member joins a waitlist instead of booking. When someone cancels, the freed spot is offered to the first person in line and they're notified automatically. You never rewrite anything by hand — rooms fill themselves and fewer places sit empty.
Can members book and cancel classes themselves?
Yes. Through the widget or a deep link to a specific course, a member signs up online 24/7, the system deducts a credit from their pass, and sends a confirmation plus email and SMS reminders. calenda recognises a returning member and prefills their details, so re-booking takes seconds.
What languages does the booking widget support?
The widget and confirmation messages work in English, Slovak, and Czech — handy for studios with international clients or expats in group classes. The language switches automatically, and you embed the widget on your site in your own colours with no developer.
Can I move from competitor B without losing data?
We will help you switch from competitor B or competitor R. The help covers services and staff, not customer history or contacts.