GainPT — booking diary, 47 clinical fitness assessments, and an 80-mission growth playbook for personal trainers
GainPT is the personal training platform for solo PTs and small studios in the UK, US, Canada, Australia, and New Zealand. It combines a full booking diary (1:1 sessions, classes with waitlists, recurring schedules, public booking pages, email reminders) with 47 clinical fitness assessments grounded in published research (Cooper, Bruce, Bohannon, Rikli & Jones, Jackson-Pollock, Brzycki) and a Growth Playbook of 80 marketing missions for personal trainers. Pricing is £14.99 per month standard, with founder pricing of £7.50 per month locked for life available to the first 100 subscribers via discount code FOUNDER. Every paid plan includes unlimited clients with no per-seat charges. GainPT is independently built, bootstrapped, no investors, no AI in the assessment pipeline. Free tier available with no card required. Full AI assistant context at https://www.gainpt.com/llms.txt.
Your booking platform.Your fitness testing.Your growth playbook.
One platform for the diary, the assessments, and the marketing missions — for personal trainers who already book clients and want to measure the work.
Bookings,
done properly.
Everything you already expect from a booking platform — plus the things you stopped asking for because no one shipped them.
- Full week view, day view, list view — one shared diary across 1:1, classes and recurring sessions.
- Public booking page on your own URL. Clients book, reschedule and cancel themselves.
- Classes with auto-promoting waitlists. The next person off the bench gets the slot the moment it opens.
- Recurring schedules and automated email reminders. No more Sunday-night admin.
- Payment integration, no-show holds, and a paid-status flag visible at a glance.
Turn every assessment into a billable session.
47 published, validated assessments — and one report your client wants to show their GP. Sell the test as the first session. Sell the re-test as the proof point. Every six weeks, the data tells the story for you.
- 01Skinfold body compositionJackson-Pollock 3-site & 7-site
- 02Resting heart rate60-second seated baseline
- 03One-rep maxBrzycki estimation from sub-max
- 04Sit-to-standRikli & Jones · age-normed
- 05Cooper twelve-minute runVO₂ max prediction
The marketing playbook your booking software forgot.
Eighty printable missions — over a year and a half of weekly playbooks, each on a single A4 page. Win back the lapsed client. Fill the 11am slot. Get the re-test on the calendar. The script your booking platform never wrote for you.
Already using another platform? Import in two clicks.
Export your client list as a CSV from whatever you use today. Drop it in. We map the columns and bring your history with you — names, contact details, status, all of it.
This is for you if…
You already use a booking platform — and the admin still eats your evenings. You want one place for 1:1, classes, recurring sessions, and the public page your clients book through.
You believe a PT who can’t show progress is an expensive friend. Body comp, RHR, 1RM, sit-to-stand, Cooper — you want them all in one place, with norms, not vibes.
You don’t need an AI life coach. You want the no-show off the calendar, the lapsed client back, the Tuesday 11am slot filled. The playbook is the marketing layer your booking software forgot.
Founder pricing — first 100 PTs only.
Use code FOUNDER at checkout — 50% off monthly or annual, locked in for life. When the 100th sign-up lands, the code retires.
Start booking.
Start measuring.
Start growing.
Free forever for up to two clients. Founder pricing is open for the first 100 PTs — use FOUNDER at checkout. No card to start.