Gym & fitness studio booking system
fill every class, every session.
Gyms, yoga and pilates studios, CrossFit boxes, and personal trainers — let members reserve a class spot or 1-on-1 session online, with capacity limits that stop a room from overbooking.
Built for gyms & fitness studios
Everything a fitness business needs to fill a class
Recurring class schedules, capacity limits, and a booking page members can use from their phone before they even leave home.
Recurring class schedules
Set up a weekly yoga class or a daily HIIT session once — the calendar keeps generating future sessions automatically, no manual re-entry each week.
Capacity-limited class bookings
Cap every class at the number of mats, bikes, or machines you actually have — registration closes automatically once a session is full.
1-on-1 and group sessions, same calendar
Run personal training sessions and group classes from one shared calendar, each with its own duration and capacity.
Waitlist for full classes
When a popular class is full, members join a waitlist instead of showing up on the off-chance a spot opens.
Automatic class reminders
Cut no-shows on booked slots with automatic confirmation and reminder messages before every class or session.
Book from a phone, no app required
Members reserve a class from a link on Instagram, your website, or a QR code at the front desk — no app download needed.
Why gyms & studios choose ISZ Booking
- Set a different capacity for a small studio room versus a full gym floor, so one popular class doesn't overbook the space.
- Recurring classes are scheduled once and keep running every week without re-entering the same session by hand.
- A solo personal trainer can run a booking page on the same free trial as a multi-room gym — no team plan required to start.
- Share your class schedule link on Instagram, your website, or a QR code on the studio door — members book without calling the front desk.
Frequently asked questions
Can I limit how many people can book a single class?
Yes — set a maximum capacity per class or session, and the booking page automatically closes registration once it's full.
Does it handle both group classes and 1-on-1 personal training?
Yes — group classes and individual sessions run on the same calendar, each with its own duration, capacity, and instructor.
Can members join a waitlist if a class is full?
Yes — instead of calling to check for a cancellation, members can join a waitlist and get notified if a spot opens up.
Related
Every class, booked before it fills up.
Set up your first class schedule in minutes — no credit card required.
Full-featured free trial on every plan · No credit card required