Software for gyms and studios in Berlin
STAK Fitness
Classes with capacity and an auto-promoting waitlist, memberships, packs and freeze with pay links and access lock, court booking with split payment, and ladies-only sessions with coaches.
One main app is free forever. AI uses prepaid credits; Receptionist is a separate paid add-on. Pricing
34 languages
EUR
AI inside the work you already do.
See every AI featureSTAK in Berlin
Berlin is the capital of Germany. Here is what STAK uses for Germany.
- Currency
- Euro (EUR)
- VAT
- 19% standard rate
- Tax authority
- Tax office (Finanzamt)
- Cash register law
- Germany requires a certified till (KassenSichV: a TSE and the DSFinV-K export). STAK does not offer that yet, so cash sales on STAK POS are not available in Germany yet.
- Language
- 34 languages, German included
- Time zone
- Europe/Berlin
The standard VAT rate is 19%, administered by the Tax office (Finanzamt). STAK’s tax pack keeps the rates with the date each one applies from, so every invoice is taxed at the rate in force on its date. Return data is prepared for you; filing stays with you and your adviser.
What your gym gets
Sell
- Classes with capacity, auto-promoting waitlist and pick-a-spot
- Memberships, packs and freeze, with pay links and access lock
- Member prices, credits, daily limits and card auto-charge
- Court and facility booking with split payment
- Shop and shake bar
- Your customers' own installable app: orders, card and bills
Studio
- Courts and padel with split payment, levels and club board
- Ladies-only sessions and gender-aware coaches
- Open matches, leagues, workouts, online coaching and coach pay per class
- Door access by membership status and ClassPass and Wellhub sync
Customers
- Customer list and history
- Loyalty points, stamps, tiers and referrals
- Campaigns, segments and journeys on WhatsApp and email
- Google reviews and replies
Team
- Till, kitchen and staff-app logins free
- Shifts, clock-in, leave and tip pools
- Payroll with the bank file and payslips in eight languages
Money
- Card and local payments through your own payment account
- Owner insights and reports
- Books, VAT and bank matching
- Profit per channel and a self-completing month-end close
Start free, pay when you grow
We suggest starting with STAK Bookings free forever. Cashiers, waiters, kitchen staff and drivers are free; you only pay for back-office users.
Prices are in US dollars; every detail is on the Pricing.
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Salary and overtime calculatorQuestions people ask
What does STAK do for gyms and studios in Berlin?
It covers Classes with capacity, auto-promoting waitlist and pick-a-spot; Memberships, packs and freeze, with pay links and access lock; Member prices, credits, daily limits and card auto-charge; Court and facility booking with split payment; Shop and shake bar and more, all built in and connected to the same customers, stock and books.
Is STAK free for a gym?
Yes. STAK Bookings is free forever. Paid plans count back-office users only: Standard is USD 16 a user a month billed yearly (USD 20 monthly) and Custom USD 31 (USD 39 monthly). Till, kitchen, staff-app and driver users are free; you see the price in your own currency on the pricing page.
How does STAK handle tax in Berlin?
The standard VAT rate is 19%, administered by the Tax office (Finanzamt). STAK’s tax pack keeps the rates with the date each one applies from, so every invoice is taxed at the rate in force on its date. Return data is prepared for you; filing stays with you and your adviser.
Can I use STAK POS as my cash register in Germany?
Not yet. Germany requires a certified till (KassenSichV: a TSE and the DSFinV-K export). STAK does not offer that yet, so cash sales on STAK POS are not available in Germany yet. Online sales, invoices, stock, bookings and accounting work.
Which currency does STAK use in Berlin?
EUR. Every amount is stored as a whole number of the smallest unit, so an invoice and the books never differ by a rounding error.
Do I need a payment account in Germany?
You connect your own payment account and bank with a provider that serves Germany, so your money reaches you directly and STAK does not hold it. Which payment methods you can offer depends on the provider you connect.
Which languages does STAK work in?
Owner screens run in 34 languages; staff screens in 34 languages and the online store in 34 languages.
Other businesses in Berlin
Start STAK Fitness free
Reserve your free workspace. One main app is free forever.
- No card needed
- Free forever