CHinUP reads your AirPods head-tracking sensors 60× per second — building a live model of your spine. Slouch too long, and it dims your screen and mutes your audio. Straighten up — everything restores.
Head-tracking IMU at 60 Hz
On-device Neural Engine
Step & motion co-processor
AirPods Pro head-tracking sensors build a real-time model of your posture. When you slouch — it intervenes. When you're aligned — it's invisible.
Live spine visualization with a dynamic 0–100% score. Seven animated vertebrae respond to your actual head pitch, yaw, and roll — detecting slouch, forward lean, and neck tilt at 60 fps.
Live Spine Link20 seconds of bad posture dims the screen and mutes audio — natural correction, no pop-ups.
Progressive DisciplineSquats with depth detection, neck resets tracking yaw, walking sessions — all sensor-counted.
Sensor-DrivenDetects head-down phone usage while walking. Live step count with daily goals.
Text-Neck GuardVisual fluid-level tracking with quick-add. Weekly charts reveal patterns.
Daily Goal SystemIntern → Executive → Visionary → Office Ronin. Achievement rings, streaks, and share cards.
4-Tier GamificationCalibrates to your body, learns your baseline, and monitors silently — intervening only when needed.
Wear AirPods Pro. CHiUP scans for the head-tracking IMU and locks on in 2 seconds.
IMU HANDSHAKELook straight ahead for 3 seconds. Captures your neutral head position as reference.
0° / 0° / 0°Sit naturally. A 3-second scan records your baseline spine angle for comparison.
BASELINE LOCKEDMonitors in background. 20s bad posture → dim screen + mute audio. Fix it — restored.
ALWAYS ACTIVEFrom morning spinal hygiene to evening parasympathetic reset. Progress through Beginner → Pro.
All analysis runs on the iPhone's Neural Engine. No cloud. No accounts. No telemetry. Your body, your data — period.
No servers, no APIs, no data transmission. Computed locally on Apple silicon.
Open and calibrate. No email, no password, no friction.
Posture history protected by hardware-level iOS encryption.
Corrects with sound. Teaches with silence. The best posture coach is the one you don't see — download CHinUP and let alignment become effortless.