v1 · built in the open · 2026

We went looking for a booking system for our cold-bathing association. We found nothing that fit.

So we built one. Now we are opening it to more associations and cold-bathing groups — while it can still be shaped.

Create account See what we are building
Volunteers in front of the sauna's shingled facade

Umeå Cold Bathing AssociationPhoto: the association

01 · Why

Everything we tried was built for salons, gyms or hotels.

Umeå Kallbadsförening built their sauna out of a converted coffee wagon and cut a hole in the river ice. Then the booking had to be solved.

Member pricing calculated automatically Did not exist
Free swims that count themselves down Did not exist
Volunteer hours that become sauna time Did not exist
A daily cap, so nobody books the whole week Did not exist
Money straight into the association's own account Rarely
A price an 80-member association can afford No

What existed was built to book time slots. We needed something that understood a membership.

02 · What we built

Membership decides what you may book — and what it costs.

That is the whole product. Everything else supports that sentence.

Anna L · Bronze memberSun 18:00
60 kr140 kr
Free swims left2 of 5
Daily cap1 of 2 slots
Credits6

Membership systems collect fees but cannot book anything. Booking systems book but know nothing about membership. Bastu does both, because an association needs both.

  • Booking with capacity, hours and closures
  • Membership, member pricing, free swims and caps
  • Volunteer hours that become credits
  • Gift cards and discount codes
  • Your own Stripe account — the money never passes through us

03 · Roadmap

An open roadmap. You see what is being built, and why.

Dashed boxes are not built yet. The order is decided together with the associations taking part.

Under discussion
Credits for v1 associations handled by hand until then
Invoicing for members
Export to bookkeeping
Annual meeting documents
More languages Norwegian first
Calendar subscription
App
Building now
Events and tickets autumn 2026
Door codes tied to the booking autumn 2026
AI assistant over MCP run it in plain language
Swish most requested
Built · v1
Booking and capacity
Membership and member pricing
Free swims and daily caps
Volunteer hours and credits
Gift cards and discount codes
Stripe Connect your own account
Widget for your own website

04 · Wishlist

Propose what you are missing. Vote for what you need.

The votes set the order of the roadmap. The sketch below opens this autumn.

WishlistSketch · opens autumn 2026
Swish as a payment methodProposed by 6 associations
▲34
Export to bookkeepingProposed by 4 associations
▲21
Sauna barrel with its own calendarProposed by 3 associations
▲14
Norwegian and DanishProposed by 2 associations
▲9

Until then: email us. Every proposal goes on the list with the name of the association that proposed it.

05 · How we work

Civic tech, built in the open.

Bastu is built by Parti together with Umeå Kallbadsförening. We offer the same method to other associations and municipalities.

01
Start inside a real operation

Bastu began in an association with an ice hole, a woodpile and a booking problem.

02
Build small, test immediately

Every feature is used by real members before the next one starts.

03
Keep the decisions visible

The roadmap, the priorities and what we choose not to do are all in the open.

04
Hand over the ownership

The money, the member data and the decisions stay with the association.

06 · Join in

We are looking for ten associations to build this with.

You get a product shaped around you. We find out what is missing.

You get

  • Credits for what you contribute — which pay the subscription
  • Help getting started, from us personally
  • Direct contact with the people building it
  • Your proposals first on the wishlist

We ask for

  • That you use it for real, for one season
  • One conversation a month about what chafes
  • That we may say you are taking part
ProjectBastu v1
Built withUmeå Kallbad
StatusOpen v1
Places left10

07 · Pricing

A price an association can afford.

Two weeks free to try. No card. No lock-in. Take part in building v1 and you earn credits for what you contribute — and the credits pay the subscription.

StartTry it for 14 days. Pay only after that.
299kr/mo

For an association with one sauna.

  • Up to 2 resources
  • Booking and capacity
  • Membership and member pricing
  • Card payment via Stripe
Try Start
PlusTry it for 14 days. Pay only after that.
699kr/mo

For more saunas and more tools.

  • Unlimited resources
  • Gift cards and discount codes
  • Email automations
  • Priority support
Try Plus

Always included: 1% platform fee on payments. The money goes to your own Stripe account.

Start with one sauna. Help decide the rest.

Create account Book 20 minutes

Two weeks free to try. No card required.