Stop slouching,
start focusing.
Shisei is a minimalist Mac app that uses advanced AI to monitor your posture. When you slouch, it reminds you to reset by bluring your screen —no wearable required. Only your camera.
Hover over the screen to simulate a slouch while working.
Custom Sensitivity
Adjust how much you need to hunch before the alert triggers. From "Strict" to "Relaxed."
Grace Periods
Set a 1–5 second delay to allow for quick movements without triggering the alert.
Motion Smoothing
Intelligent filters reduce false alarms from small, natural movements while working.
Visual Styles
Choose between a full screen Wash, a Minimal overlay, or Text Only reminders.
Shortcuts Support
Automate your posture monitoring with native Shortcuts support
Custom Icons
Choose from Human, Guardian, Focus, or Vitality menu bar styles.
Share-Aware
Automatically hides the overlay when sharing your screen. Only you will see it
Auditory Alerts
Pair visual reminders with sounds for multi-sensory posture correction.
Your Privacy Matters. Period.
Shisei processes all vision data locally using the Apple Neural Engine. No video is recorded, and no data leaves your device.
100% On-Device
Processed locally
No Recording
Zero storage
Zero Analytics
No tracking