Sense
Head tilt is read once a second from your AirPods. A counter starts only when you cross the threshold.
iPhone × AirPods
A quiet cue at your ear,
right when your posture starts to slip.
Your AirPods feel where your head is. When you keep tilting forward, Nod plays one short cue. No screen takeover. No camera.
No cameraStays on device14-day free trial
Forward, without noticing
Your head leans further than you think.
When you use your phone, your head tilts forward by 30–45 degrees on average. Hours per day. You don't notice it happening, and the same posture quietly stacks up across your week.
30°+ Typical forward tilt while using a phone
4–5h Average daily phone use
0 Quiet cues without Nod
How Nod works
Your AirPods already know where your head is.
AirPods that support head tracking — AirPods 3, AirPods 4, AirPods Pro, AirPods Max — already report your head orientation. Nod listens for sustained forward tilt, then nudges you. No camera. No cloud.
Filter
Walking, lying down, and brief glances are excluded. Only sustained forward posture moves the counter forward.
Cue
A single short tone at the ear, layered over your music or call without ducking. Then Nod stays quiet again.
Weekly & monthly reports
Awareness becomes a trend you can read.
Quiet daily cues change posture habits over time. Nod surfaces that change in weekly and monthly reports — how much your forward-tilt time dropped, when your slumps tend to peak — without scolding you.
Forward-tilt over time
Weekly and monthly average, plus best and worst days.
Improvement, plainly stated
A simple comparison between when you started and the last 7 days.
Peak-time discovery
Nod surfaces the hours your posture tends to slip the most.
Privacy
We don't upload. We don't record. We don't watch.
Posture detection happens entirely on your iPhone. AirPods motion never leaves the device. No camera, no microphone, no cloud.
No camera
Detection uses AirPods motion only.
On device
No data is sent to a server.
Wipeable
You can erase all measurements from settings.
Pricing
Try it for 14 days, in your real day.
Download is free. The first 14 days unlock everything. Continue with annual or monthly if it earns its place.
Best value Annual
$29.99 / year
≈ 2 months free vs monthly Monthly
$3.99 / month
Cancel anytime Tax may apply by region. Cancel from your Apple ID subscription settings at any time.
Common questions
What people ask first.
Which AirPods are supported?
Nod works with AirPods models that support head tracking: AirPods 3, AirPods 4, AirPods Pro, and AirPods Max. The original 1st and 2nd generation AirPods do not provide head tracking and are not supported.
What happens when I'm not wearing my AirPods?
Measurement pauses. Nod only records and reasons about posture while AirPods are delivering head data. When you put them back on, monitoring resumes automatically.
Will it interrupt my music or calls?
No. The cue is a single short 600 Hz tone played over your audio without ducking. Music and calls continue at full volume.
Will Nod nag me?
After a cue, Nod stays quiet for the cooldown you choose (none / 15 / 30 / 60 minutes). You can also set quiet hours to silence it entirely during set times.
I'm concerned about text neck or neck strain. Does Nod help?
Nod is not a medical device and is not designed to diagnose, treat, or prevent any condition. That said, it can help you notice the sustained looking-down posture that sits behind those concerns. For symptoms, please consult a medical professional.
Live with it for 14 days, then decide.
See if it stays out of your way. See if your posture changes. Decide after living with it — not before.