ATHONOS
The name
ATHONOS
ἆθλος
Athlete · Contest · Excellence
The ancient Greek root of the word athlete. The pursuit of excellence — the foundation of everything a coach builds.
νοῦς
Mind · Intellect · Reason
The Greek concept of the highest form of human thinking. What separates good coaches from great ones.
"The best coaches don't just train bodies — they develop the athletic mind. In their athletes, and in themselves."
For online fitness coaches

Your coaching business,
finally organised

Athonos replaces your Google Docs, PayPal links, WhatsApp check-ins, and scattered DMs — with one elegant tool your clients actually use.

Try free for 14 daysSee how it works

No credit card required  ·  5 minutes to set up

SL
Sara L. submitted her weekly check-in
·
MK
Marcus K. paid €49 automatically
·
JD
Jana D. completed week 9 of 16
·
AT
Alexei T. ticked off today's session
·
NR
Nina R. messaged her coach
·
SL
Sara L. submitted her weekly check-in
·
MK
Marcus K. paid €49 automatically
·
JD
Jana D. completed week 9 of 16
·
AT
Alexei T. ticked off today's session
·
NR
Nina R. messaged her coach
·

The problem

You're a great coach.
Your setup is a mess.

Most online trainers are running a real business on tools that were never designed for it. It works — until it doesn't.

📋
Check-ins in your DMs
You ask clients to message you every Sunday. Half forget. You chase them. The other half message at 2am on a Tuesday.
Instagram DMs · WhatsApp
📁
Programs in Google Drive
PDFs in shared folders. Clients can never find the right week. You spend 20 minutes per client just resending links.
Google Drive · Notion · PDF
💸
Payments you have to chase
Venmo requests that go ignored. Awkward follow-ups. No automatic billing. No record of who's paid.
Venmo · PayPal · Bank transfer

How it works

One tool.
Everything in its place.

I
Add a client in 60 seconds
Name, email, monthly price. Athonos sends them a personal link — no app download, no password, no friction.
II
Build your program once, assign forever
Create reusable programs. Assign to any client. They see exactly the right week automatically.
III
Check-ins come to you
Every Sunday, clients submit a 2-minute form. All responses in one feed — no chasing, no DMs.
IV
Payments run themselves
Stripe handles billing on your schedule. Money lands in your account. No invoices, ever.
athonos.io
MRR
€1,176
Clients
24
Retention
96%
Client rosterThis week
SL
Sara L.
12-week cut · wk 6
Checked in
MK
Marcus K.
Strength · wk 3
Overdue
NR
Nina R.
Hypertrophy · wk 4
Checked in
2 min
average client check-in time
€0
cost to get started
14 days
free trial, no card needed

"I used to spend Sunday evenings chasing check-ins and resending PayPal requests. Now I open Athonos, read what my clients sent me, and I'm done in 20 minutes."

LM
Lena M.
@lenalifts  ·  34 clients

Pricing

Simple pricing.
No surprises.

All plans include a 14-day free trial. No credit card required to get started.

Starter
€19/mo
For coaches just getting started with online clients.
Up to 10 clients
Client check-in forms
Program delivery
Stripe payments
Client messaging
Start free trial
Most popular
Pro
€49/mo
For coaches with a growing client base who want full visibility.
Up to 50 clients
Everything in Starter
Check-in feed + reminders
Retention dashboard
Revenue tracking
Start free trial
Studio
€99/mo
For established coaches running a full online business.
Unlimited clients
Everything in Pro
White-label client links
2 coach seats
Priority support
Start free trial

Your clients deserve better
than a PDF in their DMs

Set up your first client in under 5 minutes. Free for 14 days.

Try Athonos free