SitApp - Desktop AI posture coach

The software runs on the desktop and uses the computer’s webcam to monitor the user’s sitting posture in real time. An on‑device AI model evaluates the captured video locally, ensuring that no images leave the machine. When the model detects a slouch, it displays a gentle visual cue or plays a short voice prompt, allowing the user to correct their posture without wearing any external hardware.

It is intended for people who spend long periods at a desk and want to develop a habit of sitting upright. The interface lives in the menu bar, offering streak tracking, weekly trend charts, and customizable nudging options such as quiet hours and sensitivity levels. Users can train the system by demonstrating both good and typical sitting positions, which takes only a few seconds.

The application is free for macOS, Windows, and Linux, and emphasizes privacy by keeping all processing on the user’s device. It is positioned as a lightweight, continuously running helper that aims to reduce back discomfort through regular, unobtrusive feedback.