Built by Someone Who Couldn't Sit Up Straight
Hi, I'm Ali 👋 the developer behind SitApp. After years of desk work, my lower back was a mess. I tried various things to sort it - but nothing stuck. So I built the thing I actually needed: an app that watches your posture through your webcam and gives you a nudge when you start to slouch.
The Mission
Help people build better posture habits - without buying wearables, booking physio appointments, or relying on willpower alone.
Most posture solutions ask you to strap something to your body or set random timers. They don't know if you're actually slouching. SitApp is different - the Droid uses your existing webcam to learn what good posture looks like specifically for you, then monitors in the background and sends gentle alerts only when you need them.
It's the kind of tool I wished existed when I was spending 10+ hours a day hunched over a keyboard. No extra hardware, no subscriptions required to get started, and it works on Mac, Windows, and Linux.
What Makes SitApp Different
Privacy-First
Your webcam feed never leaves your computer - not even for a moment. The Droid processes everything on-device. No images are uploaded, stored, or sent anywhere. Ever.
On-Device AI
The Droid runs entirely on your machine. No cloud, no API calls, no internet required for posture detection. Your data stays yours.
Cross-Platform
Works on Mac, Windows, and Linux. Same experience everywhere. Your laptop's built-in webcam is all you need - no extra hardware required.
Built with Care
This isn't a side project from a big company. It's a focused product built by someone who genuinely uses it every day and cares about getting it right.
In the Press
What tech publications have to say 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 MakeUseOf"I didn't think a Windows app could fix my posture - but it did"
makeuseof.comReady to Fix Your Posture?
Download SitApp for free and let the Droid watch your back. Available on Mac, Windows, and Linux.
Free to use. No credit card required. Cancel Pro anytime.