On-Device Pose Estimation on iOS: What Actually Works in Production (Not Just Research Papers)

Research papers on pose estimation show impressive accuracy numbers. Production apps on consumer devices tell a different story. Here's what I learned shipping real-time pose estimation to thousands of users across 22 sports. I built SportsReflector, an AI coaching app that analyzes athletic form using Apple's Vision framework on-device. The app runs pose estimation at 30fps during live sessions and frame-by-frame during video analysis. This article covers the gap between what the documentation...