Privacy-first
Your webcam feed never leaves your computer — not even for a moment. The Droid processes everything on-device. No images uploaded, stored, or sent anywhere. Ever.
About SitApp
Built by someone who slouched too much.
Hi, I'm Ali — the developer behind SitApp. After years of desk work my lower back was a mess. I tried braces, standing desks, phone reminders. Nothing stuck. So I built the thing I actually needed: a quiet desktop app with on-device AI that watches your posture through your webcam and gives you a gentle nudge when you start to slouch.
Download free
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The mission: better posture habits, no wearables required.
Most posture solutions ask you to strap something to your body or set random timers. They don't actually know if you're slouching. SitApp is different — the Droid uses your existing webcam to learn what good posture looks like for you, then monitors quietly in the background and sends gentle alerts only when you need them.
It's the tool I wished existed when I was spending ten hours a day hunched over a keyboard. No extra hardware, no subscriptions to get started, runs on Mac, Windows and Linux.
What makes SitApp different
Four things we won't compromise on.
On-device AI
The Droid runs entirely on your machine. No cloud calls, no internet required for posture detection. Your data stays exactly where it started.
Cross-platform
Mac, Windows, Linux — same experience on each. Your laptop's built-in webcam is all you need, no extra hardware to buy.
Built with care
Not a side project from a big company. A focused product built by one person who uses it every day and cares about getting the small things right.
Meet the Droid
It has moods.
They depend almost entirely on how you've been sitting.
Smug
Mostly happy when you're sitting upright. Possibly insufferable about it.
Side-eye
Currently watching you adjust your chair for the seventh time.
Disappointed
Has notes. Many notes. Available on request.
Tired
Could use a holiday. The slouching is relentless today.
Gotcha
The "I saw that" face. Specialty: caught-in-the-act timing.
Deadpan
Default state. Will not blink. Will not miss.
In the press
Tech publications agree: posture matters.
Your back is going
to love this.
Free forever, two-minute install. Mac, Windows, Linux. The Droid is waiting patiently in your dock.
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