Show HN: HowTall – Measure a person's height in real time with iPhone Lidar

Category: other

Tags: lidar, height-measurement, arkit, ios, privacy-focused

Score: 5.7/10 (Innovation: 5, Technical: 6, Documentation: 6, Utility: 6)

HowTall is an iOS app that uses the iPhone Pro's LiDAR scanner and ARKit to measure a person's height in real-time, all on-device with no data collection. It's interesting because it demonstrates a practical, privacy-focused use of consumer-grade depth sensing hardware for a everyday measurement task.

Target audience: general users, iOS developers

Repository: https://apps.apple.com/us/app/howtall-lidar-height/id6769095440

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