Stop Slouching.
Start Thriving.
SitApp watches your back, literally - using your computer's webcam and AI to monitor your posture in real-time. When you start to slouch, it gives you a friendly nudge to sit up straight.
"I tried fixing my bad posture... and it worked"
How It Works
Get started in under 2 minutes. No complicated setup required.
Get Set Up
Install SitApp, allow webcam access, and show your best posture to the friendly droid
Show Your Slouch
Relax into your natural slouch so SitApp knows what to watch out for
You're All Set!
SitApp monitors and nudges you when need a reminder to sit up!
Good Posture vs Bad Posture
SitApp learns the difference and helps you stay on the right track.
Good Posture
Shoulders relaxed, spine aligned, head held high. Your future self will thank you!
Bad Posture
Slouching, hunching, slumped. We all do it. SitApp gives you a gentle nudge to fix it!
Built for Real Life
Simple, private, and designed to actually help you improve.
Privacy First
Your webcam feed stays on your computer. No images are ever stored, uploaded, or shared. SitApp uses AI to detect posture locally — your privacy is non-negotiable.
AI-Powered
Uses machine learning to understand your unique posture patterns.
Any Webcam Works
Works with your laptop's built-in camera or any external USB webcam.
Track Your Progress
See how your posture improves over time with helpful insights and stats.
Non-Intrusive
Gentle reminders that don't disrupt your flow. You control how and when you're notified.
As Featured In
See what tech reviewers are saying about SitApp.
"I tried fixing my bad posture... and it worked"
digitaltrends.com/computing/i-fixed-my-back-sitapp PCWorld"This free app fixed my posture and stopped my backaches"
pcworld.com/article/2905862/this-free-app-fixed-my-posture BackHero"Best Posture Apps"
backherousa.com/blogs/news/best-posture-apps PostureAI"Top Posture Apps"
postureai.app/blog/posture-appsWhat Users Are Saying
Real feedback from real people improving their posture.
"I have genuinely been slouching much less because of SitApp. My back pain has basically disappeared after a few weeks of use."
Tom
CEO of Fuzzy Labs
"It's great to have something to remind me about my posture. So helpful during long work sessions!"
Cathy
Freelance Marketing Director
"SitApp is such a great solution to a problem we all face. Simple, effective, and doesn't get in the way."
Questions? We've got answers.
Everything you need to know about SitApp
SitApp uses on-device AI to learn what good posture looks like specifically for you. During a quick setup, you show the app your best posture and your typical slouch. From then on, it monitors in the background and sends gentle reminders when you start to slip. All processing happens locally on your computer - nothing is ever sent to the cloud.
100% private. Your webcam feed never leaves your computer - not even for a moment. The AI runs entirely on your device, and we have zero access to your camera. No recordings, no uploads, no exceptions.
SitApp is designed to be lightweight. It uses minimal CPU and memory, running quietly in the background without affecting your work. Most users forget it's even there until they get a helpful nudge.
SitApp is free to get started - no credit card required.
Absolutely. SitApp adapts to however you work - sitting, standing, or switching throughout the day. When you change positions, just do a quick recalibration (takes about 10 seconds) and you're good to go.
SitApp works alongside video conferencing apps without any conflicts. You can pause monitoring with one click if you prefer, or let it keep helping you sit tall during those long meetings.
SitApp is a desktop application that runs on macOS 10.13 (High Sierra) or later, and Windows 10 or later. You'll need a webcam - your laptop's built-in camera works great, or you can use an external USB webcam. The app takes up about 700MB of disk space.
That's entirely up to you. SitApp lets you customise how sensitive the detection is and how quickly you're reminded after slouching. Some people prefer gentle, frequent nudges while others want alerts only after prolonged poor posture. Find what works for your workflow.
Your back will thank you
Download SitApp and start building better posture habits today.
Free to get started, no credit card required.
100% private • Setup in 2 minutes
SitApp is a desktop app for Mac and Windows. Visit this page on your computer to download.