Forecast the outcome. Build the programme. Track what happens between sessions. Prove progress before your client starts questioning it. Manage payments and renewals without chasing. One system for better coaching — and a stronger PT business.
Admin time. Client churn. Missed renewals. Payment chasing. Too many disconnected tools. They don’t always look expensive — until you add them up.
Use your own numbers and see what they could be costing you every year.
You know what your clients pay you. Do you know what inefficiency costs you?
Nothing here is complicated — it is four small sums on the numbers you already know. This is exactly what the calculator works out, and how.
The hours you spend on admin each week, valued at whatever you say an hour of your time is worth.
Admin hours × value of an hour × 52 weeksWhat a client pays you in total before they leave. Coaches often underestimate this one.
Monthly fee × months they stayThe revenue carried by the client relationships that end during a normal year.
Clients lost each month × what one client is worth × 12Money you chase every month, plus every software subscription, added up over a year.
Monthly amount × 12The calculator separates actual financial exposure — client revenue, unpaid or late payments, software spend — from productivity value, which is time released rather than cash earned. A pound of time saved is not automatically a pound of extra revenue.
Every manual report. Every forgotten follow-up. Every client whose progress becomes invisible. Every renewal conversation left too late.
The cost isn’t another software subscription. It’s the client who doesn’t renew because they stopped seeing the value.
Programming. Reports. Nutrition. Measurements. Payments. Reminders. Client notes.
Every hour spent stitching systems together is an hour you aren’t coaching, selling or building your business.
A client can be improving and still feel stuck.
When they can’t clearly see where they started, where they’re going and whether they’re on track, the value of coaching becomes harder to see too.
Expired packages, awkward payment chasing and late renewal conversations create unnecessary leakage.
None of it is dramatic. It just quietly comes off the top of your month, every month.
Personal training is the only profession where the practitioner is asked to be the software. You stitch together a programming app, a nutrition app, a sheet for measurements, a notes app for context, payment links, and WhatsApp — then apologise when something slips through.
One client. One system. One source of truth.
Great coaches already work this way. Trainerflow makes it the default, so your standard of care doesn’t depend on how busy your week was.
Par-Q, girths, photos, body map, lifting history and estimated genetic potential. You start from what is true, not from a template.
Weight, body fat, lean mass and key lifts projected week by week — with the date they arrive. Goals stop being wishes.
AI-drafted programming you approve, macros that match the phase, daily fundamentals, and live sessions logged set by set.
A branded report lands in their inbox with the evidence. Renewal becomes a formality, not a negotiation.
Set the weekly rate of change and Trainerflow compounds it into a forecast: body fat, weight, lean mass, and the week the target is reached. Every check-in re-runs the maths, so drift is visible in days — not at the end of the block.
Until now you could only chase a number on the scale. Trainerflow estimates each client’s genetic ceiling for lean mass from their frame, then lets you set muscle-mass and strength goals — and forecast them like any other outcome. This is the conversation that separates a coach from an app.
A client who is 92% of the way to their genetic ceiling needs a different promise than one at 61%. Show them where they actually are, what is still available, and how long it takes. Nobody leaves a plan they understand.
See genetic potentialIt triangulates the goal, the client’s weak links, their Par-Q restrictions, training age and recent performance — then drafts a truly personalised, literature-backed programme. You review it, change what you want, and only then does it reach the client. The judgement stays yours; the evenings come back.
In progress. The AI programme builder is in active development and is not live yet. The panel here is a design preview. Everything else on this page is shipping today — we will not bill you for a feature that has not arrived.
Macros matched to the phase, meal schedules, supplements, steps, sleep and habit streaks — logged in the client app and rolled into adherence you can coach from. When the forecast slips, you know whether it was the training or the Tuesday.
Sleep, resting heart rate, HRV and stress sync straight from your client’s wearable. Trainerflow turns it into one verdict before the session, and teaches your client how their own lifestyle shows up in their numbers.
Wearable sync live for Apple Health & Garmin · WHOOP integration Q4 2026
Build packages, sell blocks of sessions, take recurring payments and let renewals happen on their own. Session credits tick down as you deliver, so the awkward “you’ve got two left” conversation is already handled.
Every piece of context a serious coach keeps in their head — screening, history, restrictions, holidays, weak links, notes — lives on the client, not in your memory.
You already know your numbers. Tell us what a client pays and how long they normally stay. We’ll show you what losing just one client represents — and what keeping your roster for one additional month is worth.
Coaches don’t lose clients because they programme badly. They lose them because progress became invisible and the admin ate the relationship.
Your numbers, not an industry average. This calculator illustrates the financial value of retention; it does not assume Trainerflow will produce a specific retention improvement.
Forecast body composition, weight, muscle and strength.
Measurements, photos, lifts, adherence and milestones.
Turn the data into reports clients can understand.
Show what comes next before the current phase ends.
Don’t wait until a client is thinking about leaving to remind them why they hired you.
Most platforms are delivery tools — a place to send workouts and take payment. None of them tell you, or your client, whether the plan is going to work.
Based on publicly listed features and list pricing, July 2026. Competitor capabilities change — check before you publish.
“I went from spreadsheets and guilt to a waitlist. My clients can see the plan working — that is what renews them, not my personality.”
“The forecast changed my sales calls. I stop promising and start showing the date they hit 12% — then we hold the line together.”
“Every coach in my studio now delivers the same standard of care. Onboarding a new trainer takes a day, not a quarter.”
“Payments collect themselves, reports write themselves, renewals just happen. I coach — that is all I do now.”
We’re opening Trainerflow to an early group of coaches before the platform enters its next stage. You get the full platform for your first month free. We get something equally valuable: real feedback from coaches actually using it with clients.
Use Trainerflow with real clients and decide whether it genuinely improves the way you coach.
Tell us what slows you down, what you want improved and what would make Trainerflow indispensable to your business.
Active early adopters may qualify for preferential pricing or pilot terms based on participation, feedback and agreed pilot arrangements.
There will still be a way to join Trainerflow later. What won’t always exist is the opportunity to join this early, use the full platform free for your first month and have a direct influence on what we build next.
Not a sales script. A coach who runs a roster walks through your actual business, shows you the method on one of your own clients, and tells you honestly whether Trainerflow is right for you.
No demo required. Open a workspace, import a client, see the forecast in ten minutes.
Coach starts at £12.99 a month for 5 active clients and every tier lowers your cost per client — £2.60 each at 5 clients, £0.95 each at 100. Studio for PT teams starts at £74.99 for 50 pooled clients and adds the owner layer: P&L, per-trainer performance and retention. Enterprise is priced per operation. Every feature is included on every paid plan; nothing is sold as an add-on. Full breakdown on the pricing page.
Your first month is free on the full platform — every feature, no feature gates, no card required to start. In exchange we ask for honest feedback from real client work: what slows you down, what is missing, what would make Trainerflow indispensable. Active early adopters may qualify for preferential pricing or pilot terms, agreed case by case.
You keep everything you built. You either pick a plan from £12.99/month or drop to Free (up to 3 active clients). Nothing is deleted, nothing is locked behind a sales call, and you can cancel from your workspace settings without emailing anyone.
Yes. Send us your current export — clients, measurements, programs, payment schedules — and our team migrates it inside 48 hours, free, whatever plan you land on.
Yes. iOS and Android: today’s session, logging with video demos, weight and photo check-ins, macros, habits, messages, and their progress report. Branded to you.
The AI programme builder is in progress — it is not live yet, and it is not counted as a feature you are paying for today. Here is how it will work when it ships: nothing reaches a client until you approve it. Every draft is built from your goals, the client’s Par-Q, weak links and training history, referenced to published strength and hypertrophy literature — then handed to you as an editable program, set by set.
Payments taken through Trainerflow carry a 0.5% platform fee on top of Stripe's own processing fees. That is the whole story — no percentage of your coaching income, no charge for archived clients, no minimums. You can also collect payment outside Trainerflow and pay nothing extra at all. Packages, session credits, recurring plans and renewals are all included in your plan, never sold as an add-on.
Yes. Add coaches, share your exercise library and program templates, and hold everyone to the same standard of care — with per-coach P&L so you can see how the business is really performing.
Use the full platform before deciding whether it belongs in your business.
Don’t judge Trainerflow from a demo. Use it in your actual coaching workflow.
No complicated sales pitch. The product has to earn its place.
Forecast the goal. Build the plan. Track the work. Prove the result. Handle the payment. One connected coaching system.