This page maps the operating system. For membership software, booking software, or plunge-room software, use the category pages below.
Zettlor is booking and operations for sauna and cold plunge. Membership software, booking software, and plunge-room software each have their own page.
For membership software
Recurring access, credits, and household plans billed against seats.
For booking software
Shared sessions, events, and buyouts sold against real room inventory.
For plunge rooms
Dedicated tubs, ice baths, and contrast circuits next to the sauna.
A booking is a claim against physical capacity, guest access, payment, and the people waiting at the door. The useful part is keeping those layers in agreement.
What can this physical space become at this moment?
Seats, private rooms, buyouts, buffers, and the time around them are the real inventory. Start there, not with a generic appointment.
Who can buy this version of the room, and under which rules?
A shared session, member ritual, private visit, or event can use the same room differently. The offer makes that choice legible to a guest.
What does the team need to know when the guest arrives?
Booking, payment, waiver, credits, and visit context arrive together. The operating view should turn that context into a calmer handoff.
A rule should survive the whole visit. Set it once and Zettlor carries it through checkout, preparation, service recovery, and the record that tomorrow's team receives.
Open access, scheduled programming, and lasting relationships each run on different logic. Zettlor lets operators model all three without forcing the business into a generic class-booking template.
The same sauna is three products depending on the day, time, and group. Your software should know that.
Events shouldn’t live in one tool while customers, payments, and waivers live somewhere else.
A subscription doesn't change behavior. A membership does. For membership software, use Sauna membership software.
Bring the customers, bookings, memberships, and operating context your team already depends on.
We help map, review, and test the move before your team goes live.
Start with booking, payments, waivers, and capacity configured around the experience you want to run.
We help turn the first version of your operation into a system your staff can run.
Walk through your inventory, offers, checkout rules, and handoffs using the actual shape of your business.