WorkoutReplayAI: Form Analysis & Correction
An AI video analyzer that watches gym workouts via phone camera and gives real-time form corrections to prevent injury and maximize gains.
The Problem
Most gym-goers lack access to personal trainers ($50-200/session) and rely on mirror feedback or gym buddies to catch form mistakes. Bad form leads to injury, wasted effort, and plateaus. Existing fitness apps (Apple Fitness+, Peloton) provide pre-recorded workouts but don't analyze YOUR actual form in real-time.
Target Audience
Budget-conscious gym members (18-45), home workout enthusiasts, and people recovering from injury who need form accountability without paying for coaching.
Why Now?
Pose detection models are now open-source and fast enough for phone inference; fitness content creators demand accountability tools; AI video analysis has become accessible to solo builders.
What's Missing
Existing fitness apps are workout libraries, not form coaches. Professional form analysis requires expensive trainers or in-person assessment. No app currently bridges this affordably at scale.
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