AirPods Head Tracker App
Turn your AirPods into a precision motion instrument.
Real-time 3D visualization. Posture coaching. Mobility testing. Research-grade data export. No extra hardware required.
Your AirPods are hiding a superpower
Every pair of AirPods Pro has a lab-grade inertial measurement unit built in -- the same sensor that powers Spatial Audio. It tracks your head at up to 100 times per second across six axes of motion.
AirPod Head Tracker is the app that unlocks it.
No extra hardware. No wearables. No subscriptions. Just your AirPods, your iPhone, and a single tap.
60-100 Hz tracking -- 6-axis sensor fusion -- Research-grade CSV export -- Real-time 3D visualization
See it in action
The tracking dashboard showing real-time yaw, pitch, and roll with a 3D head visualization that mirrors your movement.
How it works
It takes about 10 seconds to go from zero to full head tracking.
Step 1: Put in your AirPods Pro -- the app detects them automatically.
Step 2: Tap Start Tracking -- head motion data begins streaming at 60-100 Hz.
Step 3: Move your head -- watch real-time values, a 3D model, and live graphs update instantly.
That's it. No calibration required. No setup wizard. You're tracking.
Five powerful tools in one app
Tracking Studio -- Live Graphs -- Posture Lab -- Mobility Lab -- AirPods Info
Tracking Studio
The command center. A live 3D head model mirrors your movement in real time using cinematic studio lighting and physically-based rendering. Below it, you get instant readouts for yaw, pitch, roll, session metrics, and automatic gesture detection.
Live 3D head model with real-time rotation values and gesture detection.
What it captures:
- Yaw -- Left/right heading, -180 to +180 degrees
- Pitch -- Up/down nod, -90 to +90 degrees
- Roll -- Ear-to-shoulder tilt, -90 to +90 degrees
- Quaternion -- Full gimbal-lock-free rotation (x, y, z, w)
- Gestures -- Nod, shake, tilt left, tilt right -- detected automatically
- Tremor -- Rotation-rate variance for micro-movement analysis
Live Graphs
Real-time charts powered by Swift Charts. Pick yaw, pitch, or roll and watch a 500-sample rolling waveform paint your movement as it happens. Spot patterns, oscillations, tremors, and asymmetries at a glance.
Real-time yaw waveform showing head rotation during a tracking session.
Posture Lab
Calibrate your ideal head position, then let the app score your posture in real time as you work, study, or game.
Circular deviation indicator with live posture score and good-form timer.
- Posture Score (0-100%) -- Tracks how consistently you hold good alignment
- Deviation Ring -- Green when you're within 10 degrees, orange under 20, red beyond
- Good Form Timer -- Counts cumulative seconds in proper posture
Set your phone on the desk during a long work session. Glance down. Correct. Repeat. Build better posture habits without even thinking about it.
Mobility Lab
A guided five-step neck range-of-motion test you can do in under a minute.
Guided ROM test results showing horizontal and vertical range breakdowns.
The test walks you through five movements:
- Center -- Establish neutral
- Max Left -- Rotate as far as comfortable
- Max Right -- Rotate the other way
- Max Up -- Tilt head back
- Max Down -- Tilt head forward
Results compare your range to clinical reference maximums and show per-direction breakdowns with visual progress bars. Run the test weekly to track improvement over time.
Research-grade data export
Every tracking session automatically writes a 22-column CSV file. This isn't simplified data -- it's the full sensor payload:
timestamp, elapsed_seconds, yaw, pitch, roll,
quaternion_x, quaternion_y, quaternion_z, quaternion_w,
rotation_rate_x, rotation_rate_y, rotation_rate_z,
gravity_x, gravity_y, gravity_z,
user_acceleration_x, user_acceleration_y, user_acceleration_z,
magnetic_field_x, magnetic_field_y, magnetic_field_z,
sensor_locationExport via email or save directly to the Files app. Then open it in whatever tool you prefer.
Python example:
import pandas as pd
df = pd.read_csv("head_tracking_2026-03-02_14-30-00.csv")
df.plot(x="elapsed_seconds", y="yaw", title="Head Rotation (Yaw)")
print(f"Mean pitch: {df['pitch'].mean():.2f} degrees")R example:
data <- read.csv("head_tracking_2026-03-02_14-30-00.csv")
plot(data$elapsed_seconds, data$yaw, type="l",
xlab="Time (s)", ylab="Yaw (deg)")Estimated file sizes: ~600 KB/min -- ~6 MB/10 min -- ~36 MB/hour
Your data. Your device. No cloud. No accounts.
The $3,000 head tracker you already own
Traditional head motion capture setups require specialized hardware, dedicated software licenses, and trained operators. Here's what AirPod Head Tracker replaces:
| Lab Setup | AirPod Head Tracker | |
|---|---|---|
| Hardware | Dedicated IMU headband or optical markers ($500-$3,000+) | AirPods Pro you already have |
| Software | Licensed motion capture suite ($200-$2,000/yr) | One-time app download |
| Setup time | 15-30 minutes of calibration | 10 seconds |
| Sample rate | 50-200 Hz (varies by system) | 60-100 Hz |
| Data output | Proprietary formats, vendor lock-in | Open CSV, works with everything |
| Portability | Lab or clinic only | Anywhere you bring your phone |
This doesn't replace a full biomechanics lab. But for quick screening, longitudinal tracking, research prototyping, and everyday posture monitoring -- it's remarkably capable for hardware you're already wearing.
What people use it for
A physical therapist runs the Mobility Lab test with patients recovering from neck injuries. Weekly CSV exports track range-of-motion progress across appointments without buying dedicated equipment.
A game developer prototypes a head-controlled camera system. The quaternion output feeds directly into a Unity pipeline. What used to require a dev kit now works with AirPods on the couch.
A UX researcher studies how people move their heads while reading on screens of different sizes. The 22-column CSV gives her yaw, pitch, roll, acceleration, and rotation rate -- enough for a full kinematic analysis.
A remote worker props up Posture Lab during an 8-hour day. The deviation ring slowly trains him to stop craning forward at his laptop. He doesn't look at it constantly -- just enough.
A grad student needs affordable motion capture for a kinesiology thesis. Lab time is booked solid. AirPod Head Tracker gives her 100 Hz head tracking data she can collect anywhere and analyze in Python that night.
Under the hood
AirPod Head Tracker captures the full sensor payload from Apple's Headphone Motion API:
- Euler Angles -- Yaw, pitch, roll in degrees
- Quaternion -- Full rotation without gimbal lock (x, y, z, w)
- Rotation Rate -- Angular velocity from the gyroscope (rad/s)
- Gravity Vector -- Orientation relative to Earth (g)
- User Acceleration -- Linear acceleration minus gravity (g)
- Magnetic Field -- Magnetometer reading (microteslas)
- Sensor Location -- Which earbud is providing data (left or right)
A 1-second stabilization period at startup discards jittery initial frames, and all tracking values are calibrated relative to your starting position -- so 0/0/0 always means "where you began."
Session metrics tracked automatically:
- Total Movement -- Cumulative Euclidean distance of orientation change
- Tremor Intensity -- Rotation-rate variance over a 30-sample sliding window
- Range of Motion -- Per-session min/max for yaw, pitch, and roll
- Gesture Count -- Nods, shakes, and tilts detected during the session
AirPods info and battery
The More tab shows your AirPods connection in detail:
- Device name and connection status
- Signal strength (RSSI) with quality labels: Excellent, Good, Fair, Weak
- Battery levels for left earbud, right earbud, and charging case
- Full session history with individual or bulk deletion
Compatibility
- iPhone -- Any iPhone running iOS 16.0 or later
- iPad -- Any iPad running iPadOS 16.0 or later
- AirPods Pro -- 2nd generation (H2 chip) or later
- AirPods Max -- All models
- AirPods 4 -- Models with Active Noise Cancellation
Head tracking requires a physical device. It is not supported in the iOS Simulator.
Privacy first
- No accounts. No sign-up. No login.
- No cloud. All data stays on your device.
- No tracking. We don't collect usage analytics.
- No subscriptions. Pay once (or free), use forever.
The app requests two permissions: motion data access (for head tracking) and Bluetooth (for AirPods battery info). Nothing else.
What's new in version 1.2.0
- Posture Lab with real-time posture scoring and deviation tracking
- Mobility Lab with guided 5-step neck ROM test
- 3D head visualization with cinematic PBR lighting
- Automatic gesture detection (nod, shake, tilt)
- Tremor intensity analysis
- AirPods battery and signal strength monitoring
- Session history management with bulk deletion
- Full 22-column CSV export with email and Files app support
Ready to unlock your AirPods?
Three steps. Ten seconds. Full head tracking.
Support and Documentation -- Contact Us -- Maker Portal
AirPod Head Tracker is not affiliated with Apple Inc. AirPods, AirPods Pro, and AirPods Max are trademarks of Apple Inc.