Teach.
Confirm.
Get paid.
fit8 keeps track of every class you teach, at every gym — and turns them into monthly invoices you send in one tap.
iPhone and Android · English, German and French
From the studio floor to your bank account.
- 1
Teach your class
Your regular classes are already in the calendar. Add one-offs in a few taps.
- 2
Confirm with a tap
Or let it happen on its own: be at the gym during class and fit8 checks it off.
- 3
Invoices go out on time
On the 1st, each gym gets an invoice built from your confirmed classes, as a PDF.
Classes that confirm themselves.
No more Sunday-evening catch-up. When you’re at the gym during a planned class, fit8 marks it as taught.
- Choose which gyms, or add your own places like a park bootcamp
- Confirm silently or get asked first
- Your location never leaves your phone
Your class, on the Lock Screen.
While you teach, the class runs on your Lock Screen and in the Dynamic Island — time left, progress, and a “Taught it” button the moment it ends.
- Starts on its own, even with the app closed
- Confirm with one tap when the class is over
- On Android, a reminder after class does the same
Invoices that go out on the 1st.
Set a rule once per gym — or for a whole chain — and fit8 drafts or sends each invoice for you, with a heads-up the day before.
- Per gym or one combined invoice for a group
- Held automatically if a class isn’t confirmed
- Send from the app, or share the PDF from your own mail
Invoices that look like your business.
Pick a layout and an accent colour, add your logo, and write your own intro and payment terms in each language. The PDF updates as you go.
- Three layouts, six print-safe colours, your logo
- Choose and order the columns on every line
- Bank details and tax number in the footer
Covered in minutes, not messages.
Can’t make it? Ask colleagues in a tap or share a link to your instructors’ chat. They say yes in the browser — no app needed — and the gym is told who’s coming.
- First to accept, or you approve
- Gym pays them, or you do — off your invoice or on it
- Takers with fit8 get the class in their calendar and on their invoice
- Free this week? Pick up open classes from colleagues and instructors nearby
Teach with friends? Pay less for Pro.
Every instructor friend on fit8 Pro takes €1 off your monthly price, and you take €1 off theirs. Three friends and Pro is €1.99 a month.
Your location stays on your phone.
Check-off happens on the device. All fit8 ever saves is the result — “confirmed by location at 18:02”. Turn it off any time.
- No location history
- Nothing tracked on our servers
- Hosted in the EU, GDPR compliant
Questions, answered.
I only teach at one gym. Is fit8 for me?
Yes. fit8 works the same with one gym or ten — you still get confirmed classes, a monthly invoice and an overview of what’s paid.
I’m a small business and don’t charge VAT.
Pick “Small business” during setup and your invoices note the exemption instead of adding VAT. You can switch any time.
Does automatic check-off drain my battery?
It uses the phone’s built-in geofencing, which wakes fit8 only when you arrive at or leave a gym. It’s off until you turn it on.
Can I send invoices from my own e-mail address?
Send directly from fit8 — replies go to you — or share the PDF to Mail, Gmail or any other app.
Is there an Android version?
Yes. fit8 is available for iPhone and Android, with the same features on both, and in your browser at app.fit8.app.
Let your next invoice write itself.
Set up in about two minutes. Your first invoice is ready at the end of the month.
iPhone and Android · English, German and French