PT Core is £14,500: a branded native client app (iOS and Android), workout builder, AI form coaching, and progress tracking, live in around 8 weeks. PT Pro is £21,500 and adds the native Apple Watch and Wear OS companion that runs the workout from the wrist.
Running costs after launch land at £150 to £400 a month for hosting, AI, payments, monitoring, and App Store fees. There's no per-client charge, so that figure holds whether you've got 40 clients or 400.
The build pays for itself when it clears what you'd have spent renting. A trainer with 50 clients on a scaling platform, plus add-ons and the hours lost to bolt-ons, is often spending more over three years than a PT Core build costs once. The Trainerize cost auditor works out your exact payback period and 3-year net.
For the full feature-by-feature case, read custom PT software vs Trainerize, TrueCoach and MyPTHub, or see the full build on the custom software for personal trainers page.