Your current angle, at a glance
A half-circle gauge shows your live tilt in real time. Danger, caution, and safe zones are color-coded.
Posture monitor ・ iOS app
The moment you slouch,
The moment you slouch,
your angle tells you.
HeadUp detects the early signs of "text neck" from your iPhone's tilt and lets you know right away. No complicated setup — just pick up your phone and it starts watching.
🎉 Launch Campaign On sale now (one-time purchase, no subscription)
Why it matters
Your neck creeps forward
Your neck creeps forward
before you notice.
While you're looking at your phone, your head tilts forward little by little. It's hard to notice in the moment — and by the time you do, it can mean a stiff neck, tense shoulders, or tired eyes.
HeadUp doesn't score or correct your posture. It simply shows you "how far you're tilted, right now" and only speaks up when it actually matters.
5secof staying past your threshold triggers an alert
10mindefault cooldown after an alert (adjustable, 1–60 min)
$0monthly fee — no subscription
How it works
Three tabs: see it, track it, tune it.
Just open the app and pick up your phone. No complicated setup — you'll see today's posture right away.
Track alerts and scores
Switch between 30 days, 3 months, 6 months, and all time to review your trends in a graph.
Make it yours
Includes a measurement tool that turns your correct posture into your alert angle.
Alert angle30°
Alert interval10 min
Push notifications
Vibration
How monitoring works
Watching quietly, speaking up only when it counts.
It doesn't buzz or notify constantly. HeadUp is built to avoid unnecessary alerts.
Active monitoring starts when you move
While still, only light monitoring runs. Picking up your phone and moving starts full angle tracking.
Alerts fire after 5 seconds
An alert only fires if you stay past your threshold for 5 seconds straight. A brief glance down won't trigger it.
Ignores your pocket
Alerts are automatically skipped while the device is still or face-down.
Measure your correct posture
A 3-second sample automatically suggests an alert angle based on your measured good posture.
Pauses when your screen locks
Monitoring automatically stops when your iPhone screen locks. No unwanted records while you're not using it.
Noticed yourself slouching just now?
🎉 Launch Campaign On sale now — one-time purchase, no subscription
Compatible devices: iPhone (iOS 18 or later / iOS 26 or later recommended)