For rental saunas and sauna houses
Booking software for rental saunas and sauna houses
Ruumio lets groups book your rental sauna online, pay by card when they book and get in with a door code that only works during their booking. You set the hours, the evening and weekend prices and the time between groups for heating and cleaning, and nobody has to be there to hand over a key.
Booked by the evening, the way groups come
Groups choose their own start and end time within the opening hours you set, in the steps you allow. Each sauna has its own shortest and longest booking, such as at least two hours, and its own booking horizon, so you decide how far ahead the summer weekends can be taken.
Visitors can book as guests with just their name and e-mail, or make an account to see their bookings and invoices. The booking calendar sits on your own website, or as a widget on the site you already have.
Time to heat up and clean between groups
A buffer keeps time free before and after every booking, so the sauna can be aired, cleaned and heated again before the next group arrives. The buffer isn't charged and is left out of the free times visitors see. When you book yourself, you can still put bookings back to back.
Close one sauna for a maintenance day, or every sauna for a holiday, and those times can't be booked.
Weekend evenings at their own price
Set the sauna's normal hourly price, then a different rate for chosen weekdays and hours, such as Friday and Saturday evenings. A longer block, such as a four-hour evening or a whole day, can have its own price, and a booking always pays the cheaper option.
Visitors see the price before they book and pay by card when they book, through your own Stripe account. The time is held while they pay and confirmed when the payment arrives.
A door code instead of a key
Many rental saunas have nobody on site. With the door codes add-on and UniFi Access, every booking gets its own PIN for its doors. The code starts working a set time before the booking and stops a set time after it, and a cancelled booking loses its code.
The code is e-mailed to the booker and repeated in the reminder before their visit. From the admin you see every upcoming code, make a new one if needed and unlock a door remotely when a group is standing outside.
Hot tub, towels and firewood as extras
You define the extras yourself and price each per hour or once per booking: the hot tub, a set of towels, a basket of firewood, a grill. An extra can be limited to how many you have: if two sauna houses share one hot tub, it can't be booked for both at the same time and is greyed out for that time.
An extra can be offered only on some days or hours, and it can need your approval when it takes preparation, such as heating the hot tub. Extras are paid together with the booking.
How many people are coming
A booking question can ask how many people are coming, capped by the sauna's capacity, so a group of twenty can't book a room for eight. Other questions can ask the occasion or anything else you need to know. The answers are in the booking details and in every booking e-mail, and the sauna's facilities are shown before people book.
Cancellation rules set in advance
Each sauna has a deadline for cancelling online, a number of hours before the start that still gives a full refund, and the share refunded after that. The refund goes back to the card automatically. When you cancel a booking yourself, you choose a full refund, the policy's share or none.
Gift cards, regulars and company evenings
Sell gift cards on your website: the buyer pays by card and the code goes by e-mail to them or straight to the person they are giving it to, with their message. Regulars can buy an hour pack of prepaid hours, used automatically when they book.
Companies that book team evenings can have a company account: their bookings are confirmed without a card payment and they get one invoice a month with a reference number.
- Several saunas, grouped by location with the right address in every confirmation
- The website in the languages your visitors speak, such as Finnish, English or German
- Reviews collected after the visit
- Notifications on your phone for new bookings and cancellations
Questions
Do visitors need an account to book?
No. You can let guests book with their name and e-mail. Paid bookings are paid by card at once; free ones are confirmed through a link in an e-mail.
Do I need a particular door system?
Door codes work with UniFi Access, as an add-on. Without it, bookings, payments and extras work the same; you just hand out access yourself.
Can the hot tub be booked without the sauna?
You decide. Offer it as an extra on the sauna's bookings, or add it as a room of its own with its own hours, prices and buffer.
What happens when a group cancels late?
Your cancellation policy decides: a full refund up to the deadline you set, then the share you chose, or none. The refund goes back to the card without anyone doing anything.
Updated 25 October 2026
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