Your phone sees what your mirror misses.
Point your camera during a set. 33 pose keypoints tracked in real time. Form scored. Corrections delivered before your next rep.
The Algorithm
Not just rep counting.
Coaching.
Most form apps draw skeletons over your video. Fitnish runs joint-angle physics, checks against your individual mobility limits, and flags the failure mode before the next rep — like a coach watching every set.
How It Works
Four steps. Zero setup.
Aim Camera
Side angle or 45°. Phone leaned against your gym bag works.
Pose Detection
33 keypoints tracked at 30fps. On-device. No internet needed.
Form Scoring
Real-time 0-100 score updated rep-by-rep.
Live Warnings
"Knee caving." "Back rounding." "Range short." Vocal cue before the next rep.
What It Measures
Beyond rep counting.
Rep Counting
Automatic, ~99.4% accuracy across 24 exercises.
Bilateral Symmetry
Left vs right imbalance detected before it causes problems.
Range of Motion
Depth, lockout, and tempo checked every rep.
Joint Angles
Knee, hip, shoulder, elbow tracked in real geometric degrees.
Library
24 exercises tracked. More every month.
Works offline. Always.
CV runs entirely on-device. No frames leave your phone. Train in a basement gym with no signal — it still works. Your form data is yours alone.
“It caught my knee caving before my trainer even noticed. Saved me from a serious injury.”
Aim your camera. Get coached.
Free to download. First AI plan in 30 seconds. No gym required.