Free means free
An hour of AI posture monitoring every day, permanently, no card required. Enough to cover your longest daily study block and build the habit before you spend anything.
Student posture is desk-worker posture on hard mode: laptop on a dorm desk, library chairs designed by someone who hates you, cram sessions that run past midnight. SitApp uses your laptop's webcam and on-device AI to catch the study slump as it happens - and the free tier is actually free, because we remember the budget.

Studies of student populations keep finding pain rates that would alarm an occupational health department:

An hour of AI posture monitoring every day, permanently, no card required. Enough to cover your longest daily study block and build the habit before you spend anything.
Separate calibration profiles per study spot, because your posture baseline at a proper desk and in the library are different problems. Keeping several saved at once is a Pro feature - the free hour works anywhere, one saved setup at a time.
Everything runs on-device. No images leave your laptop, nothing is uploaded, and it works offline - what your webcam sees in your room stays in your room.
Daily streaks and achievement levels do for posture what your language-app owl does for vocabulary - minus the passive aggression. Mostly.
Direct download or Mac App Store, Intel and Apple Silicon - the campus default, covered.
Code-signed installer for Windows 10+. Works on the sensible mid-range laptop you actually bought.
Native .deb and AppImage, for the CS students who installed Arch in week two.
Actually free: one hour of monitoring per day, forever, no credit card. Pro ($3.99/month or $34.99/year) removes the daily cap, but the free tier doesn't expire and doesn't nag you into upgrading.
No - it's designed for exactly that. You can calibrate posture profiles for your dorm desk, the library, and wherever else you set up. Keeping several saved at once (up to 5) is part of Pro.
Completely. All detection happens on your laptop - no images or video are stored, uploaded, or visible to anyone, including us. It also runs offline, so it works in a dead-wifi lecture hall too.
SitApp needs about 700MB of disk space and a working webcam, and runs on macOS 12+, Windows 10+, and most modern Linux distros. On older hardware the on-device AI uses noticeable CPU - the free tier is a zero-cost way to find out how it behaves on your machine.
Genuinely free tier, private by design, two-minute setup.
Download free