Launching with Eterna Wellness Lab — now on the App Store · be one of the founding 100
Caldekins for gyms & boutique fitness

Classes, memberships and Direct Debit — without the surcharge

Class schedules, waitlists, recurring memberships and a trials pipeline for independent gyms and boutique studios — monthly rolling, no card-fee markup, no annual contract.

We move your customers and data over for you — free.

9:41●●●
strength club
Good morning, Alex
Choose a day, then a session
Strength Foundations
45 min · 6 spots · £12.00
Spin 45
45 min · 12 bikes · from £9.00
Open gym
members · unlimited
Book
Membership
Account

Your venue's branded space in the Caldekins app — customers scan your QR and land here.

Why venues switch

The problems we exist to end

No card surcharge

Some fitness platforms quietly add ~2.9% on top of card processing. With Caldekins you pay Stripe's rate and not a penny more.

No annual lock-in

Month-to-month terms. If we're not earning our keep, you leave with your data — that's the deal.

Direct Debit native

UK members expect Direct Debit for memberships. It's built in, not a bolt-on.

What you get

Built for the way your venue runs

Class scheduling

Recurring timetables, capacities, waitlists and coach assignments.

Memberships & packs

Monthly plans by Direct Debit or card, class packs and drop-in credits.

Trials that convert

Free or paid trial classes that roll into memberships without re-entering details.

Attendance & no-shows

Check-ins, attendance history and late-cancel rules that protect busy classes.

£

Front-desk POS

Supplements, kit and drinks on tap to pay, one ledger with memberships.

Member app

Your brand, your timetable, their bookings and membership — in their pocket.

See the full platform →
The independent's edge

Priced for one busy studio, not a chain

Big fitness platforms price and build for franchises, then charge independents the same. Caldekins is two public prices, everything included, and a member experience that looks like you spent chain money on it.

  • Everything included at one flat price
  • Member-facing app under your brand
  • Reports that answer 'how was this week?'
Simple pricing
2% of takings,
or £200 a month.

Plus Stripe’s card fees, at cost, billed to you by Stripe. Everything included. No commission, no guest fees, no contract.

See pricing

See it wearing your brand

Build it yourself in sixty seconds — or ask us anything first.