Personal trainer software for UK PTs with no monthly fee

What is personal trainer software?

Personal trainer software (also searched as "PT software" or "personal training software") is a tool for running the business side of personal training, and often the coaching side too. Most tools cover the same core jobs:

• Booking and scheduling: clients book sessions online and you avoid double bookings.
• Client management: one record per client with history, notes, goals and progress.
• Payments and invoices: taking card payments, selling session packs and sending invoices.
• Programming: building workouts and assigning them to clients.
• Communication: messaging in one place.

A note on the name: "PT" also means physical therapy, and some search results for "pt software" are about that. In this guide, PT software means software for personal trainers.

What FitDesk includes

FitDesk is a web app for UK personal trainers and coaches. Everything below is included with no monthly fee.

Online booking and scheduling

Publish your availability and session types, and clients book from your scheduler. Times that are already taken are not offered to clients, and clients get an email confirmation when they book. One-to-one sessions and group sessions sit in the same calendar.

Client management

Keep each client's sessions, package credits, progress and messages together. Intake forms, habit tracking and challenges are available for coaching between sessions. Client accounts are free.

Payments, packages and invoices

Connect your own Stripe account. Clients pay by card through Stripe, and the money settles into your own bank account on Stripe's payout schedule. You can sell session packages (credits are used when a session is booked and returned if it is cancelled) and send an invoice by email with a payment link. Cash payments can be recorded in the app. Read more on Stripe for personal trainers.

Workout programmes and progress

Build a programme once, save it as a template and assign it to any client. Change the template and linked client plans update. Clients log sets, reps and weights, and you can track weight, body measurements, progress photos and personal bests.

Messaging

In-app chat with attachments and email notifications keeps client conversations out of your personal WhatsApp.

Data protection

Users can export their data and delete their account. Our privacy policy, data processing agreement and impact assessment are published. Read more on how UK GDPR applies to client health data.

The ICO says sole traders and businesses that use personal information must pay a data protection fee unless they are exempt. A personal trainer keeping client records on a computer or phone is likely to need to pay. Our guide to GDPR for personal trainers explains who needs to pay and what to do with health data.

What personal training software costs with FitDesk

There is no monthly fee for PTs: no subscription, no client cap and no card needed to sign up. The only FitDesk charge is 0.7% on Stripe card payments (minimum 1p). Stripe's own fees still apply. Cash payments have no FitDesk fee.

Worked example (illustration only). A client pays £50 for a session by standard UK card. FitDesk's fee is 0.7% of £50, which is 35p. Stripe lists 1.5% + 20p for standard UK cards (stripe.com/gb/pricing, checked 2 October 2026), which is 95p on £50. The total in fees is £1.30 and you receive £48.70. Stripe's rate depends on the card type and can change, so check Stripe for your own rate. If the same client pays you cash, there is no FitDesk fee. Stripe's own fees still apply to card payments.

How FitDesk compares with other PT software

Prices and plans change often. Prices last checked 29 September 2026; My PT Hub checked 16 October 2026. This table uses each provider's own public pricing page. Prices are in US dollars as the providers list them, and each price states its billing basis.

For a full side-by-side, see our comparison of personal trainer software in the UK, or read the Trainerize alternative and My PT Hub alternative pages.

Who FitDesk suits, and who should look elsewhere

FitDesk is a good fit if you are an independent UK PT or a small coaching business, you want bookings, packages and card payments without a monthly fee, and a web app that works in a mobile browser is enough.

Look at other tools first if:

• You need a native app your clients install from the app stores today. FitDesk's native app is not available yet.
• You need an app listed under your own brand name in the app stores. FitDesk does not offer that today.
• You need a payment method other than Stripe card payments or cash records.

How to get started

1. Create your FitDesk account. No card is needed.
2. Connect Stripe. Connect your own Stripe account so card payments go to your bank.
3. Set up your sessions. Publish your availability and session types, and add your session packages.
4. Add your clients. Import or add your clients, assign a workout template and send your invite link.