Fitness coach software: bookings, sessions and payments in one place
Booking link, reminders, one-to-one or group sessions and payment tracking for fitness coaches. Free to start, 0% commission.
Free plan with no time limit · No credit card
The fitness coach app in action
The demo follows a coach’s day in under a minute: a client books from her phone, the coach accepts in one click, sees her week in the calendar, Grix sends the reminder and the payment is tracked. Grix runs in your phone’s browser and can be added to your home screen like an app, without going through an app store.
How it works
1. Create your session formats
One-to-one session, assessment, group class, video follow-up: each format has its own duration, price, location (address, gym or video link) and minimum booking notice.
2. Open your availability
Set your weekly hours and a buffer between sessions to absorb travel time. Grix only offers slots that are genuinely free.
3. Share your link
Put it in your Instagram bio, on your website or in your messages. Clients pick a slot and leave their details without creating an account.
4. Accept, Grix sends the reminders
You accept the request from your dashboard. The client gets the confirmation, then an email reminder the evening before, plus one an hour before on Plus and Pro.
A clearer schedule for a fast-moving practice
One-to-one coaching, small groups, assessments, multi-session programs: a fitness coach juggles several formats in the same week, between clients’ homes, the gym and outdoor spots.
Grix shows those formats on your public page, blocks slots that are already taken and keeps every session in a day, week or month calendar.
- One-to-one and video sessions
- Group classes on Plus and Pro
- Session series in one go
- Buffer time between clients
Fewer messages, fewer missed details
Clients book on their own through a clear link: no more messages to find a slot or confirm the time.
Reminders go out automatically the evening before the session. When a client does not show up, you mark the no-show and decide whether to charge for the session.
Clients and payments stay connected
Each session stays connected to the client and its payment status: paid, unpaid or complimentary, whether the client pays cash, by bank transfer or another way.
The client record brings together session history, your notes and the total paid. You know who to follow up with and who has nothing booked.
Which fitness coaches is it for?
Grix is built for independent fitness coaches and personal trainers, strength and conditioning coaches and small studios that handle their own bookings. At clients’ homes, in the gym, outdoors or on video, the tool follows the way you work.
It is a weaker fit if you are looking for workout-programming software or an exercise app for your clients: Grix handles the organization and the admin, not the content of your sessions.
- Personal trainers at home or in the gym
- Outdoor group class coaches
- Strength and running coaches
- Coaches starting out with a few clients
WhatsApp, Excel or Grix: the comparison
WhatsApp is still perfect for motivating clients and a spreadsheet for a few calculations. But once you follow around ten regular clients, here is what changes day to day, especially in the weeks when group classes and home visits pile up.
| Day to day | Grix | Excel | |
|---|---|---|---|
| Booking a session | Clients book on their own, 24/7 | Back-and-forth messages | Typed in by hand |
| Reminder before the session | Automatic email the evening before | Sent by you | None |
| Group class spots | Capacity and waitlist | Counted in the group chat | A sheet to keep up to date |
| Payment tracking | Status per session and per client | From memory | Columns to fill in |
| Client history | Record with sessions and notes | Lost in the thread | One tab per client |
| How clients see you | A booking page in your name | Informal | Invisible to clients |
Pricing: Free, Plus and Pro
Start free, with no credit card and no time limit. Move to Plus for group classes and the one-hour reminder, then to Pro to remove the client limit. Grix takes no commission on your clients’ payments.
| Plan | Free | Plus | Pro |
|---|---|---|---|
| Monthly price | €0 | €7.99/month | €19.99/month |
| Yearly billing | — | €6.39/month (€76.68/year) | €15.99/month (€191.88/year) |
| Active clients | 10 | 25 | Unlimited |
| Booking links | 2 | 10 | Unlimited |
| Group sessions | — | Up to 10 participants | Up to 50 participants |
| Email reminders | 24h before | 24h and 1h before | 24h and 1h before |
| Payment requests | — | Yes | Yes |
| Grix commission on your payments | 0% | 0% | 0% |
| Getting started | No credit card, no time limit | 21-day free trial | 21-day free trial |
Trial offered at sign-up or later from within the app, one per account: card required, no charge before day 21, cancel before at no cost.
See full pricingTurn scattered admin into a structured coaching business
Grix brings clients, sessions, bookings and payment tracking into one workflow built for independent coaches.
Create my booking linkFree plan with no time limit · No credit card
Frequently asked questions
What is the difference between fitness coach software and a fitness coach app?
None with Grix: it is the same tool on your computer and your phone. It runs in the browser and can be added to your home screen like an app, without going through the App Store or Google Play.
Is Grix suitable for personal trainers?
Yes. Grix works for fitness coaches, personal trainers and small studios that manage their own clients, bookings and payments.
Can I manage group classes?
Yes, from Plus: up to 10 participants per session on Plus and 50 on Pro. Group bookings are confirmed instantly and a waitlist builds up once the class is full.
Do my clients need an account?
No. They book from your link with their name, email and phone number, with no password or app to install. A one-to-one booking arrives as a request you accept or decline; a group class is confirmed while seats remain.
Can I track cash or bank-transfer payments?
Yes. You mark the session as paid when the money arrives, whatever the payment method. Grix takes no commission.
Is Grix free?
Yes, with the Free plan: no time limit, no credit card, up to 10 active clients and 2 booking links. Plus costs €7.99/month and Pro €19.99/month (20% less billed yearly), tax included, no commitment. Grix takes no commission on your payments.
Is there a free trial?
Yes. Plus and Pro come with a 21-day free trial, once per account: at sign-up from the Pricing page, or later from Settings → Billing. A card is required, nothing is charged during the trial. After a first trial or subscription, an upgrade is charged right away.
Does Grix build workout programs?
No. Grix runs the business side of your coaching: clients, bookings, reminders and payments. Use a dedicated training app alongside it for programs and exercises.