CoachAI

The problem Most people who train do it unsupervised. A personal trainer is out of reach for the majority of gym-goers, so people follow programs they found online and perform movements nobody has ever corrected. The outcome is predictable: slow progress, nagging pain, and injuries that come from the same handful of form errors repeated a few thousand times. Fitness apps haven't fixed this. They record what you did. They can't see how you did it. How CoachAI works Point your iPhone at yourself and start a set. CoachAI uses the camera to track your body's movement in real time — joint positions, ranges of motion, tempo — and flags form breakdown while you're still in the rep. Not a summary three weeks later from a physiotherapist. Now, on the rep that went wrong. All processing happens on-device. No video leaves your phone, nothing is stored on a server. Alongside the tracking sits a program engine: structured, periodized training that progresses week to week and adapts to the sessions you've actually completed, rather than shuffling random exercises into a daily list. What you need An iPhone running iOS 17 or later. No wearables, no extra hardware, free to start.