UK-built · free to start
Log the set.
Keep the record.
A workout tracker that runs in any browser. Build the session, log every set against a rest timer that survives a refresh, and watch the graph climb. Add clients the day you start coaching — same account, nothing to move.
- Exercises, with instructions and video
- 193
- Programmes, imported in one tap
- 26
- To start, and no card
- £0
A look at it
Four screens, and what they do
The training screen, the coach roster, the charts and the conversation — the four places you will spend all of your time.
Live session
Your targets sit behind the fields as a prompt. Log what actually happened, tick the set, and rest starts itself.
Coach roster
Who trained and who did not, over a rolling four weeks. A client you have sent nothing to reads as a dash rather than a zero — a different conversation to have.
Progress
Estimated one-rep max from the best working set of each session, because a chart of your warm-up ramp is not progress.
Messaging
One thread per client, ordered by whoever spoke last, with a notification at the other end so nothing sits unanswered.
1 / 4
Who it's for
One product, three jobs
The tiers stack rather than replace each other. Coaching is added to the account you already train on — your own plans, folders and logged sessions come with you, and go back to being just yours if you stop.
Lifters
You train, you log, you look back at the numbers.
- Plans with supersets and circuits
- A library of movements, with video
- A rest timer that survives a refresh
- Personal bests found as you log them
Coaches
You carry a roster, and one flat fee carries all of it.
- £29 a month — the same at ten clients or a hundred
- Every client you coach gets Pro free
- See who trained, and who needs chasing
- Messaging and 1:1 booking built in
Gyms
You run coaches, classes and a floor full of members.
- £79 a month — unlimited coaches, unlimited members
- A timetable with waitlists and attendance
- Move a leaving coach’s clients in one action
- One invoice, with nothing to count
On day one
What you get before you pay anything
All of this is on the free tier. No card at signup, and none later.
Type it, don’t dig for it
Start typing a movement and it appears, bringing its instructions and equipment with it. There is a browsable picker for when you would rather look than type.
Supersets and circuits
Link two exercises and they run back to back with no rest between them. Rest comes back once the group is done, which is how a circuit is meant to work.
Barbell, treadmill or clock
Lifting is reps and weight, a row is a duration, a run is distance and time. Each kind of work is logged in the units it actually uses.
Know what it costs you
The time estimate updates as you add sets, so you find out whether the session fits the hour you have before you leave the house.
Folders hold a block together
Group a training block, and move plans in and out of it. Delete a folder and the plans inside are kept — they just go back to Unsorted.
Copy rather than rebuild
Duplicate a plan and change the copy. A variation you try on Tuesday never rewrites the original.
For coaches
£29 a month, flat
Nothing per client, no seats, and no cap on how many people you work with. Every client you take on gets the whole Individual Pro feature set free, for as long as you work together.
Adherence over 28 days
The plans you assigned in the last four weeks, against the ones they actually trained. A rolling window, so a good March cannot carry a quiet May.
The figure is always written out
Green above 80 per cent, gold from 50 to 79, red below. The colour backs up the number rather than replacing it, so the roster reads the same to a colourblind eye.
You can tell “not started” from “not training”
A client you have not sent anything to shows a dash, not nought per cent. One of those is a conversation about their week; the other is a conversation about yours.
Who needs you this week
Clients surface for attention when they need a nudge or when they need more work.
For gyms and studios
£79 a month, every coach included
Unlimited coaches and unlimited members on one invoice, with no seats to allocate and nothing to reconcile at the end of the month.
Every coach, at a glance
Client count, sessions this month and average adherence for each one. Open any coach and you see the roster they see.
The floor, in one view
Sessions and adherence across the whole gym, the members drifting away, the decisions waiting on you, and a chart of when you are actually busy.
Coaches are not counted
Take on your fourth coach or your fourteenth. The subscription covers all of them and the bill does not move.
Photos you never see
Owners do not see members’ progress photos. Not with a setting, not on request — running the gym does not change that.
Over time
The point is the record
Every chart on every screen is drawn from sets you logged. Nothing is estimated from an average, and nothing is filled in for you.
Before you start
Questions people ask first
A workout tracker you use in the browser. You build a session from a library of 193 exercises or import one of 26 ready-made programmes, log every set as you do it with a rest timer running, and watch your strength, volume and consistency move over the following months.
Three people, on one product. Lifters who want a real record of what they trained. Personal trainers who want a roster, plan assignment, messaging and one-to-one booking in one place for a flat £29 a month. And gyms running coaches, classes and a floor full of members.
Yes. Unlimited plans and folders, the whole exercise library, live session logging with the rest timer, and personal bests found as you log them — with no card at signup and none later. Individual Pro adds programmes, charts, goals and check-ins for £4.99 a month, and the first 14 days are free.
No. It runs in any modern browser on a phone, tablet or laptop, and the phone layout is designed for use on the gym floor with one thumb. You can add it to your home screen from the browser if you want it to open in its own window.
Yes, and it is worth asking them to. A client working with a coach on RepStax gets the whole Individual Pro feature set free for as long as you work together — programmes, charts, goals and check-ins — plus their plans, their goals and a message thread with them.
It stays yours. Cancelling or downgrading deletes nothing: the screens for the tier you left lock, and every plan, logged set, personal best and check-in behind them is exactly where you left it if you come back. Deleting your account is the only thing that removes anything.
Start with the free tier
No card, no trial clock, and nothing to cancel. Everything you log stays yours whatever you do next.