IndustriesHealth & fitnessPersonal trainer
DukeOS for personal trainers · AI operating systemCRM, ERP and AI agents in one system. From $49 a month per business. About DukeOS
Personal trainer softwareYou train the clients. Duke keeps the diary.
DukeOS is the AI operating system for personal trainers: clients, sessions, packages, progress and WhatsApp in one app, with Duke, an AI assistant that prepares the work for your approval. Your clients, sessions, packages and payments in one place. Clients message on WhatsApp to book or move a session, and Duke answers from your free times while you're on the gym floor.
01Duke at your training business
Duke handles the texts while you count the reps.
When it's just you, every message about moving a session lands mid-set. Duke offers clients your real free times, books and moves their sessions as appointments, and keeps an eye on who's nearly out of package sessions, so the admin waits until your last client leaves.
Who decides
- On its own, by your ruleDuke on duty does it for the customer who wrote, once you switch that action on.
- Waits for your approvalIt prepares it and shows a one-line preview. Nothing changes until you approve.
- Just answersReading needs no approval, and it sees only what the person asking may see.
- Checked every morningGoals are measured every morning, with a forecast.
A day with Duke
A Thursday for a solo personal trainer- Moved Chris to FridayHe asked to swap today's session. Friday 7:00 was free, so it's booked.Duke on dutyOn its own, by your rule
- Checked your intro sessions goal12 intro sessions booked by 30 November: 7 so far, on pace for 11.GoalsChecked every morning
- Saved a client's new goalAmira wrote “I want to run 10k by spring”. Added to her Workout plan.Custom pagesOn its own, by your rule
- Counted sessions leftBetween clients you ask: Josh has 2 of 10 left, Kelly just 1.Custom pagesJust answers
- Drafted Kelly's next package invoice10 sessions, ready for your approval before her last one on Saturday.InvoicingWaits for your approval
02The apps personal trainers use
Small enough for one trainer.
Clients, appointments, packages and invoices. Add more trainers later, each with their own working hours.
03In the app
A closer look.
Screens from our live demos, and what each part does for the business.
Ask Duke
Keep clients from drifting.
Ask in plain words. Duke reads your diary and pages with your permissions and prepares the message. You approve before anything is sent.
Diary
Your diary, built from your hours.
Session types with their length and price, your working hours and time off. Free times are worked out for you, and double-booking yourself is refused.
PT packages
Sessions bought, sessions used.
The gym's ready-made PT packages page keeps trainer, sessions bought and used, price and expiry. Add it to your account and change any field.
Workout plans
A plan for every client.
Goal, days a week, routine and review date, on a board of Active, Paused and Completed. Each plan sits on the client's timeline.
Pages Duke can build for you
Packages, plans, progress.
Start from the gym's ready-made pages, such as PT packages and workout plans, or ask Duke for your own. For example:
04Related
Also for
The same apps, set up in the words of other businesses.
06Start free
Build your wholebusiness, free.
Free to build. Pay when you publish.
Start free
