The effortless gym platform

Run your gym.
Not your software.

Everything you need to run training that runs on a schedule — sessions, bookings, memberships, PT packs, payments and check-in — in one fast, modern place your whole team will actually enjoy using.

Genuinely easy to use Everything in one place Hands-on onboarding
strong-os.com

Revenue · this week

£2,480

▲ 12%

Occupancy

86%

Today’s classes

06:00Strength 459/10
07:15BootcampWaitlist
12:15Small-Group PTWaitlist
17:30Conditioning7/12
Fast, modern software your whole team will love

Why gyms switch

Run your gym, beautifully

Effortless to run

Fast, uncluttered and genuinely a pleasure to use — for you and your coaches. Spend your day on the gym floor, not fighting your admin.

Everything in one place

Schedule, bookings, memberships, session packs, payments, check-in and your member list — one modern system, not a spreadsheet and three tools taped together.

Made for how you actually train

Session packs, credits, waitlists and memberships shaped around real training — small-group strength, bootcamps, circuits and 1-to-1 PT all fit naturally.

Everything to run sessions

One place for the whole gym

Online booking & schedule

Members book, cancel and join waitlists in seconds — on the web or in the app. Your schedule stays up to date automatically.

Memberships, packs & drop-ins

Sell memberships, session packs or single sessions. Credits are tracked per session type automatically, so the right pack covers the right session.

Payments, handled

Take card and Apple Pay online. Recurring memberships and one-off purchases run themselves — no invoices to chase.

Fewer no-shows, fuller sessions

Cancellation windows, waitlists that auto-fill freed spots, and one-tap check-in so you always know who turned up.

A booking experience members love

Members book in seconds on the web or in the app — clean, quick and effortless, so they keep coming back.

Know your numbers

Revenue, occupancy, new members and retention at a glance — so you can see what’s working and grow with confidence.

How we compare

The modern alternative to Mindbody & Glofox

Strong OSMindbodyGlofox
Modern, fast interfaceYesDatedOK
Made for studios that run classesYesGym, salon & spaGym-first
Genuinely easy to useYesSteepOK
Everything in one placeYesAdd-ons to stitchTiered
Class packs & credit typesYesGeneric passesGeneric
Onboarding & migration helpHands-onPaidPaid
See the full Mindbody, Glofox & bsport comparison →

Questions

The things gyms ask us

How hard is it to switch?+

Not hard at all. We move your members, memberships and schedule across and set you up personally, so you’re never starting from a blank page.

Will my team find it easy to use?+

That’s the whole point. It’s fast and uncluttered, so your front desk and coaches are up to speed in minutes — not weeks of training.

Does it work for my kind of gym?+

If you run a schedule of sessions and memberships, yes. It’s built for class-based training — small-group strength, bootcamps, HIIT and circuits — and works just as well for PTs running their own diary of 1-to-1s.

Can members book on their phone?+

Yes — members book, cancel and join waitlists in seconds, on the web or in the app.

What happens if I need help?+

You get hands-on onboarding and a real person who answers — not a ticket queue and a help centre.

Is my gym’s data private?+

Completely. Every gym is fully isolated — you only ever see your own members, sessions and bookings.

Ready to make the switch?

See Strong OS on your own gym’s schedule. Book a quick demo and we’ll show you around.