Real-time — not a schedule

Slouch Reminder for Mac

Posturion watches your posture through the webcam and plays a gentle audio nudge the moment you actually slouch — not every 20 minutes. Adjustable sensitivity, runs fully on-device.

Download on the Mac App Store

Stop slouching, not pinging

Timer-based "sit up straight" reminders lose their bite fast — your brain tunes them out. Posturion fires only when forward head, shoulder tilt, or head tilt actually crosses your threshold.

FAQ

How does Posturion know when I slouch?

It measures forward head, shoulder tilt, and head tilt using Apple Vision and fires a nudge when values pass your threshold.

Can I control how sensitive it is?

Yes — Low / Medium / High sensitivity, so you can tune it to your baseline.

Will it keep pinging me while I read?

No. Alerts only trigger on actual drift and have a cool-down.

Is my video recorded?

Never — every frame is analyzed on-device and discarded immediately.

Install the slouch reminder

Free. macOS 14+. Apple Silicon or Intel.

Download on the Mac App Store