The best posture app for Windows.
A lot of the well-known posture apps are Mac-first (Nekoze and Posture Reminder AI are macOS-only). On Windows you have fewer obvious choices — so here's the honest lay of the land, and the two ways StopSlouching covers Windows.
Short version: you don't even have to install anything to start. StopSlouching runs in Chrome or Edge on Windows, with an optional native system-tray app when you want always-on monitoring.
1 · The web app (zero install)
Open the free demo in Chrome or Edge, calibrate, and slouch on purpose to see the nudge. No account needed. With Pro, detection keeps running when you switch tabs or minimize.
2 · The native Windows app
Lives quietly in your system tray and watches your posture across every app, not just the browser — even when the browser is closed. Available on the Microsoft Store, with a 60-minute free trial. Pro removes the time limit.
Why webcam beats a reminder timer on Windows
Windows' built-in Focus Assist and the usual break-timer apps fire on a schedule — every 30 minutes whether you're sitting well or not — so you learn to dismiss them. A webcam coach only interrupts when your posture actuallydrifts below your own calibrated baseline. That's real-time biofeedback, the same mechanism physical therapists use, and it's what makes the habit stick.
StopSlouching does it entirely on your PC — the webcam feed is processed locally by an on-device AI model and never uploaded. You can confirm it yourself: open DevTools → Network while it runs and watch for frame uploads. There are none.
What you get on Windows
- A real-time 0–100 posture score, broken into head, shoulder and uprightness sub-scores.
- A targeted 30-second stretch when you slouch — chosen for whichever sub-score is weakest, not a generic reminder.
- Native Windows notifications and an always-on system-tray mode via the desktop app.
- A free live demo to start — see it catch a slouch in under a minute, no card — then Pro for unlimited use, with a 14-day money-back guarantee.
Try the free webcam demo.
Test the nudge in about a minute in Chrome or Edge — no install or account needed. Pro keeps it running after the demo. For a 60-minute trial and system-tray monitoring, get the Windows app.
Comparing options? See the full posture-app roundup, StopSlouching vs SitApp, or the complete guide to fixing your posture.