Kemtai
AI personal trainer that watches your form through a webcam and corrects you in real time.
About
Kemtai turns a laptop or phone camera into a motion-tracking personal trainer. Its computer vision tracks the body during a workout, counts reps automatically, scores each rep on a 0-100 form scale, and gives spoken corrections in real time. The company says it analyzes 111 body points and supports over 2,000 exercises and variations, and hands-on reviews at T3 and Bustle confirm the skeleton overlay, automatic rep counting, and per-rep scoring work as described.
Kemtai started as a consumer fitness app with trainer-led on-demand classes and an AI workout builder (around $20 per month after a free trial), and has since moved into clinical rehab: it is FDA listed and CE-marked for its exercise and assessment platform, and announced a partnership with XRHealth in August 2025 to pair its computer vision with XR physical therapy. It runs in the browser with no wearables or sensors, which keeps setup trivial but means accuracy depends entirely on camera placement and lighting.
What it can do
- Real-time rep counting via computer vision
- Per-rep form scoring on a 0-100 scale
- Spoken real-time form corrections
- Skeleton overlay for movement visualization
- 2,000+ supported exercises and variations
- On-demand trainer-led classes and AI workout builder
- API and white-label platform for healthcare providers
- FDA-listed, CE-marked exercise and assessment platform
Setup
- Sign up at kemtai.com and allow camera access in your browser.
- Position your laptop or phone so your full body is visible.
- Pick an on-demand class or build a custom workout with the AI workout builder.
- Follow the trainer while Kemtai tracks reps, scores your form, and gives real-time corrections.
Prerequisites
Laptop or phone with a camera; a modern web browser.
Use cases
Works with
Trust score — 7/10
Scored 7/10 (metrics tier, metrics-v1). Evidence: FDA listed and CE-marked exercise platform (company via PR Newswire, Aug 2025); 111 body points and 2,000+ exercises claimed; XRHealth strategic partnership announced Aug 2025; expansion to four continents with hospital pilots in the UK, US, and Israel (EIN Presswire, 2024); hands-on reviews from T3 and Bustle corroborate core functionality. Strengths: regulatory listing, clinical partnerships, independent reviews confirm the product works. Docked for: (1) form-accuracy metrics are vendor-reported, no independent accuracy study published; (2) consumer subscription positioning versus clinical B2B is still evolving. License: proprietary.
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 6.0/10
- Maintenance · recency, releases, issue load
- 7.0/10
- Openness · license + docs
- 6.0/10
- Manual review · sanity read + red-flag check
- 7.0/10
- · FDA listed and CE-marked computer vision exercise platform (company via PR Newswire, Aug 2025)
- · 111 body points tracked, 2,000+ exercises and variations claimed
- · XRHealth strategic partnership announced Aug 2025
- · Expanded to four continents with hospital pilots in UK, US, Israel (EIN Presswire, 2024)
- · Hands-on reviews from T3 and Bustle corroborate core functionality
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.