No download · works in your browser
Your posture,
fixed.
Real-time posture coaching using your webcam. 100% in-browser — your video never leaves your machine.
Web works in Chrome, Edge, Safari, or Firefox · Desktop for Windows (Mac/Linux soon)
Detects in real time
Google's pose model runs on your GPU, 10+ frames a second, tracking 33 body landmarks.
Coaches, not nags
When you slouch for 5+ seconds, we surface a targeted office-friendly stretch. Not just a notification.
Verifiably private
Open DevTools → Network. Zero video frames sent anywhere. Open-source detection model.
Why a web app for posture?
Every other posture app makes you download something first.
| StopSlouching | SuperShrimp / SitApp | |
|---|---|---|
| Install required | No — just open the link | Yes (.dmg / .exe) |
| Works on tablets / iPad | Yes | No |
| Verifiable privacy | Inspect Network tab | Trust the binary |
| Try before buying | Full free tier, no signup | Pay first |
| Sharing with teammates | Send a URL | Send a download link |
| Auto-prescribed stretches | Yes, targeted to your weakness | Just an alert |
Simple pricing
Start free. Upgrade when the history becomes useful.
Free
Real-time posture coaching, forever.
$0
- Real-time score + alerts
- Targeted 30-second stretch breaks
- Today's session timeline
- Browser + native desktop notifications
- Office-friendly stretch library
Pro
RecommendedHistory, insights, integrations.
$7/month
or $49/year (save $35)
- Unlimited cross-device history & weekly trends
- Personalized AI insights every Monday
- Streaks, goals, achievements
- New stretch library drops monthly
- Slack / Discord weekly recap
- Multiple posture profiles (desk, couch, standing)
Team pricing coming soon · $5/user/month with admin dashboard
FAQ
Is my webcam video sent anywhere?+
No. Posture detection runs entirely in your browser using an on-device machine-learning model. You can verify this yourself by opening DevTools → Network while using StopSlouching.
Do I have to install anything?+
The free web app needs zero install — just grant camera access and you're working. A native desktop app is available for always-on detection while you use other apps; it's the same code wrapped in a system-tray icon.
Which browsers are supported?+
Chrome, Edge, Firefox 100+, and Safari 16.4+ on desktop. Background tab detection works best on Chromium-based browsers thanks to MediaStreamTrackProcessor.
How does the alert work in the background?+
The pose-detection worker keeps running when you switch tabs and signals our Service Worker directly via BroadcastChannel. The Service Worker fires an OS-level notification — main thread isn't in the critical path, so it works even when this tab is in the background.
What's the difference between Free and Pro?+
Free gives you real-time score, alerts, and today's session. Pro adds unlimited cloud-synced history across devices, weekly AI insights based on your trends, streak tracking, new stretch content monthly, and integrations like Slack and Discord weekly recaps.
Can I cancel my subscription?+
Yes — anytime, from the in-app settings or the Paddle customer portal. Access continues until the end of your current billing period. First-time subscribers get a 14-day refund window.
Is this medical advice?+
No. StopSlouching is a wellness aid, not a medical device. If you have neck or back pain, please see a doctor or physical therapist.
What stretches will it ask me to do?+
Office-friendly only — chair-based, subtle, no get-on-the-floor work. Neck rolls, chin tucks, upper trap stretches, shoulder blade squeezes, seated spinal twists, chair-back thoracic extensions, eye breaks, and more. Targeted to whichever sub-score (head, shoulders, back) is weakest at the moment of alert.