For personal trainers

Train clients. Don't text all day.

Lambda books your sessions, manages recurring weekly slots, and handles the "can we move tomorrow?" messages without you opening WhatsApp.

Trainers with auto-cancellation policies recover €350–600/month in late-cancel fees.
Without it, every late-cancel is just lost revenue and an awkward conversation next session.

The daily reality

Most of your day is WhatsApp

Twenty clients, each rescheduling, asking for nutrition tips, sharing progress photos. Your phone runs your business.

Weekly recurring slots, edited constantly

Marco moves to Tuesday, Laura cancels Wednesday, new client wants 7 AM Friday. The calendar is a moving target.

Late cancellations kill your week

A client cancels 30 minutes before. There's no time to fill the slot. €40-80 evaporated.

A real conversation

This is what your customers will see when they message you. Lambda replies in your tone, in their language.

Lambda
online
I can't make our 7am session tomorrow, can I push it to Friday?
Sure. Friday 7:00 is open. Want me to move it there? Heads up — our 12h cancellation rule means today's cancellation would count, but rescheduling now is fine.
Move to Friday please
Done — your session is now Friday at 7:00. See you then 💪

How Lambda handles it

Books and reschedules sessions automatically

Clients message "can I move tomorrow to Thursday?" — Lambda checks your real availability, offers alternatives, confirms.

Manages weekly recurring blocks

When a new client signs up for 3 sessions/week, Lambda books them all forward. Cancellations and reschedules are one-tap.

Enforces your late-cancellation policy

Set a 12-hour cancellation rule. Lambda enforces it — clients who cancel late get a friendly note that the session counts.

What's included in every Lambda plan

24/7 replies

Customers always get an answer, even at 2 AM on a Sunday.

Instant booking

Knows your hours, services, breaks. Books only what fits.

Multi-staff

Each member has their own calendar, services, and availability.

8 languages

EN, IT, DE, FR, ES, PT, NL, AR — auto-detected per customer.

Smart reminders

24h before each appointment with one-tap confirm.

Human takeover

Your team can step in anytime, in one click.

Live in 30 minutes

No technical setup. No new phone number. You scan a QR code, we configure the rest.

1

You scan one QR code

Open WhatsApp Business on your phone, tap Linked Devices, scan. That's all the technical work you do.

2

We configure your AI

Our team sets up your hours, services, staff, pricing, FAQs, and tone of voice — together with you in one 20-minute call.

3

Customers start booking

From that moment, every WhatsApp message gets a reply within 10 seconds. You watch from the dashboard, jump in when you want.

Common questions

Can it differentiate between PT sessions, online, and group?

Yes. Each is a separate service with its own duration and price. Lambda books each one accordingly.

Does it work for hybrid in-person + online clients?

Yes. You set whether each service is "at gym" or "online" — Lambda handles the booking and sends the right meeting link when needed.

What about workout plans and follow-ups?

Lambda handles scheduling. Plan delivery stays in your existing flow — but Lambda can send automatic check-ins after each session.

Try it free for 14 days

Set up in 30 minutes. Cancel before day 14 if it's not for you — no charge.

GDPR-native · EU-hosted · €49–199/mo · 14-day trial