Gym Software You Describe: Class Booking, Member Portal and Retention CRM
Mythex lets a gym build a website with published prices and the class timetable, class booking with caps per bike or rack and an automatic waitlist, a member portal for freezes and PT sessions remaining, and a CRM that flags members who have not visited in three weeks. Describe your gym in chat, watch the live preview, and publish it with a database behind it.
Retention is the business; the tools are scattered
January brings a surge of joins, September a smaller one, summer is quiet, and what decides the year is how many of those people are still paying in April. The front desk works across a membership system, a separate class booking tool, trainers' own diaries and a WhatsApp group for cover. Spin classes fill with people who never turn up while the waitlist goes ignored. Failed payments, freeze requests and renewals pile up, and nobody can see the member who quietly stopped coming four weeks ago until they cancel.
- Class caps matched to bikes, racks or room size
- Waitlists that promote the next person on cancellation
- Freezes members request instead of cancelling
- PT packs with sessions remaining
- A list of members with no visits in three weeks
- Failed payments followed up within days
What you can build for gyms
Class booking that fills the no-show spots
Each class is capped to its equipment, cancellations inside the window count against the member, and the waitlist moves people up automatically. Personal training sessions book into each trainer's own diary.
Build class booking for my gym. Each class has a cap (spin 20 bikes, HIIT 16, yoga 25), members book from the timetable, cancellations within 2 hours count as late, and a waitlist promotes the next person automatically. Members can also book personal training into a trainer's available slots.
Three tiers, a freeze and a guest pass
A small set of tiers with clear access (off-peak, full, full plus classes), freeze and cancellation rules applied the same way for everyone, and guest passes or family add-ons.
Create a membership system for my gym with three tiers: off-peak (10:00–16:00 weekdays), full access, and full plus unlimited classes. Each tier has a monthly price, joining fee and minimum term. Members can freeze for 1 to 3 months for travel or injury, and each tier includes two guest passes a month.
A member area that heads off cancellations
Members see their plan, renewal date and bookings, request a freeze, check PT sessions left in their pack, and open the programme their trainer set.
Make a member portal for my gym where members see their tier, renewal date and class bookings, request a membership freeze with a reason, see personal training sessions remaining, and view workouts their trainer assigned.
Spot the members drifting away
Trial visitors followed until they join, each member's goal recorded, and a list of members with no visits in three weeks so a coach can check in before they cancel.
Build a CRM for my gym tracking trial visitors and enquiries until they join, each member's goal, visits per week, and a list of members with no visits in 21 days so a coach can message them.
Published prices and the real timetable
Tiers with joining fee, monthly price and contract length in one table, the class timetable with levels, trainers with specialties, and staffed hours versus access-only hours.
Create a website for my gym with a pricing table showing tiers, joining fee, monthly price and minimum term, the weekly class timetable with level, trainer profiles with specialties and booking links, opening hours split into staffed and access-only, and a free trial pass form.
Net members, not just January joins
Active members, joins and cancellations by month, class attendance by slot and instructor, and visits per member per week as an early churn warning.
Make a dashboard for my gym showing active members, joins and cancellations per month, net change, class attendance by time slot and instructor, and average visits per member per week.
The first month decides who stays
New members who follow a plan in their first weeks are much more likely to still be around later. A short beginner programme with technique videos, released week by week, plus a check-in call after two weeks, gives the January cohort a reason to keep coming.
- Beginner strength or couch to 5K plans
- Exercise videos with coaching points
- Progress logs for weights and times
Instructor cover at six in the morning
Record which instructors are qualified for each class format. When someone calls in sick, the cover list only shows people who can actually run that class, and front desk, cleaning and equipment checks go on the rota as timed duties.
Questions
Can members book classes and join a waitlist?
Yes. Classes have caps, and when someone cancels the next person on the waitlist is moved in automatically.
Can I take monthly membership payments?
Yes. Recurring billing needs a provider that handles subscriptions, such as Stripe, on the gym's own account. The app then shows each member as active, frozen or failed payment.
Can I have a gym app on members' phones?
On Pro, Mythex can turn your published app into an Android app and an iPhone app that open it, so every publish updates the phone apps too.
Will it work with my door access system?
Only if the access system offers an API or exports visit data. Otherwise you can import visits as a CSV for the dashboard.
Is it free?
You can build and launch on Free with no card and a daily credit allowance. Pro is $25 a month and brings your gym's domain, code editing and extra credits.
More for gyms
- Gym Website Builder: Make a Site That Sells Memberships, with AI
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- Gym CRM: Track Trials, Members and Who Stopped Coming, Built with AI
- Gym Invoicing and Billing App: Memberships, PT Packs and Failed Payments
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