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.
You Already Know You Slouch
Most people try to fix their posture with willpower alone — setting phone reminders, buying corrector braces, or just telling themselves to sit up straight. It never sticks.
Back & Neck Pain Gets Worse
Hours of unnoticed slouching compound into chronic pain, stiffness, and tension headaches that follow you home from work.
Reminders Don't Work
Phone timers go off at random — when you're already sitting fine, or 20 minutes after you started slouching. They can't see you.
You Forget Within Minutes
You correct yourself, feel great for 60 seconds, then drift right back. Without real-time feedback, habits never form.
A Smarter Way to Sit Up Straight
SitApp replaces guesswork with real-time monitoring. Set it up in 2 minutes, then let the Droid watch your back.
Get Set Up
Install SitApp, allow webcam access, and show your best posture to the 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 whenever you need a reminder to sit up!
Pain Fades Away
Users report noticeably less back and neck pain within the first few weeks. Real-time nudges break the slouching cycle before damage sets in.
Habits That Stick
Unlike reminders that fire at random, SitApp only alerts you when you're actually slouching. Your muscle memory builds naturally.
Zero Effort After Setup
No wearables, no braces, no phone apps to open. SitApp runs silently in the background — it just works.
Loved by Real People
Thousands of users and top tech publications trust SitApp to help improve 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.
"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-appsBuilt for Real Life
Four pillars that make SitApp the posture tool that actually works.
A Droid That Learns You
SitApp doesn't use generic posture rules. The Droid learns your specific good and bad posture through a quick calibration, then detects real-time changes — even subtle ones like a slow forward lean.
100% Private, Always
Your webcam feed never leaves your computer — not even for a moment. The Droid processes everything locally. No images or video are ever uploaded, stored, or sent anywhere. Only your account and posture stats sync to the cloud.
Gentle Nudges, Not Nags
The Droid delivers reminders that are noticeable but never disruptive. Customise alert style, sound, sensitivity, and position — make it fit your workflow.
- Multiple alert styles: visual, sound, or both
- Adjustable sensitivity and delay
Watch Yourself Improve
Track your daily posture score, build streaks, and earn achievement badges. SitApp's dashboard turns better posture from a chore into a habit you can see.
- Daily posture percentage and hourly breakdown
- Streak tracking for consistency
- Achievement badges to keep you motivated
Why I Built SitApp
I built SitApp because I had the same problem you do. After years of desk work, the back pain crept in — slowly at first, then impossible to ignore. I tried everything: posture braces, standing desks, phone reminders. Nothing stuck.
So I built the tool I wished existed: something that could actually see when I was slouching and gently remind me in the moment. No wearables, no subscriptions, no data leaving your machine. Just a simple, private desktop app that watches your back — literally.
Today, SitApp helps thousands of people around the world build better posture habits. I hope it can help you too.
— Ali, creator of SitApp
Simple, Honest Pricing
Start free, upgrade if you love it. No hidden fees, no surprise charges.
Free
Everything you need to start improving your posture.
- Real-time posture monitoring
- Customisable alerts and sounds
- Daily posture dashboard
- 100% private, on-device processing
- Mac, Windows & Linux
Pro
For serious posture improvement with advanced insights.
- Everything in Free
- Extended posture history and trends
- Multiple location profiles
- Break timer reminders
7-day free trial • Cancel anytime
Questions? We've got answers.
Everything you need to know about SitApp
100% private. Your webcam feed never leaves your computer — not even for a moment. The Droid runs entirely on your device, and we have zero access to your camera. No recordings, no uploads, no exceptions.
The Droid learns what good posture looks like specifically for you. During a quick setup, you show it your best posture and your typical slouch. From then on, it monitors in the background and sends gentle reminders when you start to slip.
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.
Yes to both. SitApp adapts to however you work — sitting, standing, or switching. Quick recalibration takes about 10 seconds. It works alongside Zoom, Teams, and other video apps without conflicts.
macOS 12+, Windows 10+, or most modern Linux distributions. You'll need a webcam — your laptop's built-in camera works great, or any external USB webcam. About 700MB of disk space.
The Mac App Store requires sandboxing that restricts the camera access SitApp needs. By distributing directly, we ship updates faster and keep the app free. Our macOS builds are Apple notarized and Windows builds are code-signed — the same distribution model used by VS Code, Slack, and Discord.
Absolutely. Cancel with one click, no questions asked. You'll keep Pro features until the end of your billing period. The free plan is genuinely full-featured — Pro is there for people who want extra insights, not because we've locked essential features behind a paywall.
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 • Cancel anytime
SitApp is a desktop app for Mac, Windows, and Linux. Visit this page on your computer to download.