--- title: Sauna booking software description: Sauna booking software for commercial sauna and cold plunge rooms. How shared-capacity sessions, private buyouts, digital waivers, front-desk POS, and assisted migration work on Zettlor. keywords: sauna booking software, shared capacity sauna booking, sauna management software, sauna scheduling software canonical: https://www.zettlor.com/sauna-booking-software updated: 2026-10-31 --- # Sauna booking software A commercial sauna room is not one appointment. A twelve-seat sauna can hold twelve unrelated people on one clock, or one private group that buys the whole room. Appointment software models one client, one staff member, and one slot. Class software models an instructor roster. Neither represents a physical thermal room where capacity is the product. ## Short answer Zettlor is booking and operations software built for commercial sauna and cold plunge rooms. A session carries its own seat count (for example, 6, 8, or 12 seats) and fills seat by seat until full. The same room can sell shared drop-in seats and exclusive private sessions or space buyouts from one inventory pool without double-booking, while handling recurring memberships, punch packs, digital waivers, front-desk POS on your own Stripe account, and assisted migration. ## When you do not need this If you rent one private room to one party at a time, never share seats among strangers, and rarely sell out, a simple appointment calendar such as Acuity Scheduling or Square Appointments is enough. Buy purpose-built sauna booking software when shared seats, private buyouts on the same room, member seat holds, or cold plunge bottlenecks make generic calendars break at the front desk. ## Why generic schedulers break - **Shared seats and private buyouts collide**: Appointment tools force operators to maintain separate calendars for shared drop-ins and private group rentals. In Zettlor, [shared seats and private sessions share one room inventory](/guides/booking/private-vs-shared-same-slot): a private session or space buyout lock closes shared drop-in seats for that window, and booked shared seats prevent a conflicting buyout from double-selling the room. Private buyouts also support [upfront percentage or fixed deposits with balance collection](/guides/pay/deposit-then-balance), [checkout add-ons](/guides/booking/private-with-add-ons), and [host-paid booking before every guest name is entered](/guides/pay/host-pays-before-names). - **Waivers either abandon group carts or miss guests**: Forcing a group host to collect every friend's signature before paying causes checkout drop-off while seats sit on hold. Zettlor secures payment first, then immediately prompts for signatures and provides a shareable group waiver link plus door QR and kiosk `Sign waiver` ([collecting waivers online or at the door](/guides/desk/waiver-web-or-door)), while blocking self check-in until every attendee signs. Staff see signed or missing status on each guest row on `Schedule` ([seeing signed waivers](/guides/desk/see-signed-waiver)), and per-offering `Requires Waiver` supports [multiple separate waiver templates](/guides/desk/more-than-one-waiver) (such as session liability, cold plunge acknowledgment, and membership agreement) with versioned history. - **Processor lock-in at the front desk**: Zettlor connects directly to [your own Stripe account](/guides/pay/own-stripe-account) so payouts, saved cards, and dispute history stay in your name. Front-desk POS and walk-in checkout charge saved cards on file, Stripe's in-browser card form (phone tap-to-pay works where supported by the browser), [retail cash on the register](/guides/pay/offline-payment), and [door QR self-checkout](/guides/desk/qr-poster). Dedicated countertop Stripe Terminal hardware is not required or paired today ([front-desk card checkout](/guides/pay/stripe-reader)). - **Painful switching and card re-entry**: Moving from Acuity, Momence, Mindbody, or Vagaro should not force active members through a second checkout. Zettlor combines team-assisted migration with staged tools in `Advanced -> Import` and `Advanced -> Migration`: customer CSVs are deduplicated by email and phone (`Merge Customer` includes undo), [existing Stripe subscriptions link directly to customer profiles](/guides/membership/port-existing-membership) so billing continues on the original card, [remaining punch-pack visits and gift card balances import](/guides/migrate/gift-card-balances), and [future reservations](/guides/migrate/future-reservations) land on repeating room templates before you flip the live calendar ([full migration checklist](/resources/migrating-sauna-memberships-and-credits)). ## What to evaluate - [Shared-capacity seats on a session](/guides/booking/shared-capacity) - [Private vs shared on one room](/guides/booking/private-vs-shared-same-slot) - [Digital waivers online or at the door](/guides/desk/waiver-web-or-door) and [multiple waiver templates](/guides/desk/more-than-one-waiver) - [Front-desk card checkout and POS](/guides/pay/stripe-reader) - [Migrating sauna memberships and credits](/resources/migrating-sauna-memberships-and-credits) - [Pricing](/pricing): Individual is $0/mo (platform fee waived on the first $2,000/mo, then 3%), Pro is $369/mo plus 2%, and Max is $12,000/yr plus 1%. - HTML lander: [Sauna booking software](/sauna-booking-software)