Built for specialist studios — not adapted from a generic gym app
Run your studio.
Without the admin.
Swim schools, PT studios, and specialist instructors have needs that generic booking platforms don’t serve. SEN profiles, family accounts, rebook pools, award schemes, instructor vetting — Unstack has all of it.
SEN-first, not SEN-afterthought
Your instructors know what they need before they start
Generic platforms have a text field called “Notes”. Unstack has structured SEN flags, medical notes, and consent tracking — visible on every child profile, surfaced to instructors before the session, stored to UK GDPR standards.
Rebook pool
Cancelled spots don’t sit empty
When a client cancels, the slot enters a timed rebook pool. The next family on the waitlist gets a claim window — via SMS or their parent portal — before it reopens to general availability. No manual chasing.
Your brand
Your clients never see the Unstack name
Every studio gets its own booking URL and branded pages. On Pro, Unstack is entirely invisible — custom domain, your colours and fonts, no “powered by” badge. It looks like your platform because it is.
Studios using Unstack
“Unstack gave us the structure we needed without the overhead. The SEN support is genuinely thoughtful — it’s built for our world, not bolted on.”
Podlife Swimming
Swim School
“Finally a booking system that doesn’t feel like a second job. My clients book themselves and I focus on training. The SEN client notes are a game-changer.”
SEN PT
Personal Training
The right starting point for your studio
Pick a preset built for how your studio works. Every module, permission, and default is configured for your type of business — not a generic gym.
Solo
Free to start — 1% per transaction
No monthly fee, no complexity. Clients book themselves, you get paid, you teach. The right entry point for individual practitioners who want to get out of WhatsApp and spreadsheets.
Most popular
Swim School
From £29/month
Group classes with live capacity, family accounts with child profiles, SEN flags for every student, award schemes, rebook pools, and monthly billing. The full platform for aquatics programmes.
Personal Training
From £29/month
1:1 sessions, client goals, session notes, packages, and video links. Built for solo and small PT studios who need more than a calendar link but less than a gym management system.
Also available: Reformer Pilates and Custom presets. See all presets →
Ready to get off
the spreadsheets?
Solo plan is free forever — 1% per transaction, no monthly fee, no time limit. Studio plan starts at £29/month with a 14-day free trial. No credit card required.