AI weekly briefs. ML churn prediction. Injury risk scoring.
Know what every client needs before they walk in the door.
By the time a client stops showing up, the warning signs were there weeks earlier. Declining energy. Dropping session quality. Low motivation. You just didn't have time to spot them across 20+ clients.
Managing clients in spreadsheets and WhatsApp
Missing early churn signals until it's too late
No time to analyse every client's data every week
One platform. AI intelligence built in from the ground up.
Every Monday, Claude AI analyses each client's training load, check-ins, and session data — and generates a structured brief with red flags, wins, and a ready-made session plan.
ML model scores each client's probability of dropping off based on attendance patterns, check-in sentiment, and training load trends.
ACWR-based injury risk tier (RED / AMBER / GREEN) flags clients whose training load spikes before they get hurt.
Shannon entropy and bilateral imbalance tracking detects when a client's progress is stalling — before they notice.
Log exercises, sets, reps, weight, RPE, and bilateral tracking in seconds. Volume calculated automatically.
Track client wellbeing across 5 dimensions — energy, sleep, motivation, soreness, nutrition — with trend analysis.
Install on iPhone or Android from your browser. Full-screen app experience, no App Store needed.
MediaPipe computer vision counts reps and detects bilateral imbalances in real time through your phone camera.
Stripe-powered subscription billing. Clients upgrade, downgrade, and manage their plan directly in the app.
Enter each client's name, goal, experience level, weight, and injury history. Takes 2 minutes per client.
After each session, log exercises, sets, reps, and RPE. Clients complete a quick weekly check-in covering energy, sleep, motivation, soreness, and nutrition.
Every Monday morning, TrainerOS generates an AI coaching brief for every client — red flags, wins, adjustments, and a next session plan. Ready before your first client walks in.
Start free. Upgrade when you're ready.
Solo trainer starting out
Full ML + CV intelligence
Gym or studio, multi-trainer
All plans include a 30-day free beta. No card required to start.
Join UK personal trainers using TrainerOS AI to retain more clients, prevent injuries, and coach smarter.
Start free — traineros.uk