Best Personal Trainer Software UK (2026): An Honest Guide

For a self-employed UK personal trainer, CoachDesk is the best pick in 2026: £19/month flat, with your clients, workouts, invoicing and an AI workout builder in one login. If you coach 100+ clients online, My PT Hub (unlimited clients) or Trainerize (deepest programming) fit you better. Here's how to choose in two minutes.

Here's what the other "best software" lists won't tell you: most rank tools by who pays the biggest affiliate fee, not by what's best for you. This one ranks by what you pay and what you get. Let's keep it simple.

The short answer

• Best all-in-one for UK PTs: CoachDesk — £19/month flat, no per-client fee.
• Best for 100+ online clients: My PT Hub — unlimited clients from about £49/month.
• Best for hardcore workout programming: Trainerize — the deepest features, but you pay per client.
• Best for premium 1-to-1 online coaches: TrueCoach — clean and simple, but pricey: $53/month for 20 clients.

What to actually look for

Ignore the feature lists. You need five things:

1. It holds all your clients in one place. One login, everyone you train.
2. It builds and sends workouts — ideally with AI, so you're not writing programmes by hand on a Sunday.
3. It invoices in seconds, not in a spreadsheet.
4. Your clients get their own app or portal, so they stop texting you at 9pm asking what weight to lift.
5. It's built for the UK and priced in pounds — not a US tool with the prices swapped over.

Nail those five. The rest is decoration.

The honest rundown

CoachDesk — £19 Starter / £29 Pro. Built in the UK for self-employed PTs. The £19 plan covers clients, calendar, invoicing, a client portal, in-app messaging, a workout builder and progress tracking. The £29 Pro plan adds an AI workout generator, nutrition tracking, habit tracking and weekly check-ins. 14-day free trial, no card. Honest take: it's newer than the giants. No App Store app yet (it runs in your phone browser — you add it to your home screen), and no white-label branding. Need those today? Look elsewhere. Want every tool that matters for £19, in pounds? Nothing here beats it.

My PT Hub — about £20 Standard / £49 Premium. A UK-built platform that 130,000+ trainers use. Premium gives you unlimited clients from about £49/month. Honest take: built for big online rosters. The white-label app costs extra on top, and some trainers find the calendar fiddly.

Trainerize — from $10/month, then it climbs. The price rises with every client you add, and it's in dollars. Switch on nutrition, payments and branding and a coach with 50 clients pays $150–$200/month. Honest take: the deepest workout programming and the biggest app ecosystem here — built for coaches who live in the programming.

<!-- TODO: point to real comparison page -->

TrueCoach — from $26 for 5 clients, $53 for 20. Clean and simple, popular with online coaches. Honest take: the per-client price climbs fast as your roster grows.

So which one?

Train clients in the UK and want one tool, in pounds, that does the lot? Start with CoachDesk. Run a 100-client online roster or live in advanced programming? Look at My PT Hub or Trainerize.

Want the head-to-head? Read Trainerize vs My PT Hub vs CoachDesk.

Or just try it. CoachDesk's 14-day trial needs no card. Add two clients, build one workout, send one invoice — start here. Ten minutes will tell you more than any list.