Powered by Apple Silicon
Your AI Posture Guardian.
Shisei is a minimalist Mac app that builds better habits through posture awareness.
Private, precise, and uses on-device AI.
Shisei is a minimalist Mac app that builds better habits through posture awareness.
Private, precise, and uses on-device AI.
Every workspace is different. Shisei lets you customize exactly how and when it intervenes, so it stays helpful without ever getting in your way.
Fine-tune the vision model to your desk height and posture style.
Choose from soft blurs, color washes, or simple text reminders.
Adjust how much you need to hunch before the alert triggers. From "Strict" to "Relaxed."
Set a 1–5 second delay to allow for quick movements without triggering the alert.
Intelligent filters reduce false alarms from small, natural movements while working.
Choose between a full screen Wash, a Minimal overlay, or Text Only reminders.
Automate your posture monitoring with native Shortcuts support
Choose from Human, Guardian, Focus, or Vitality menu bar styles.
Automatically hides the overlay when sharing your screen. Only you will see it
Pair visual reminders with sounds for multi-sensory posture correction.
"I built Shisei because I needed it. In an age of constant video calls and long hours at the desk, I found myself slouching more than ever. I wanted a tool that was private, and actually effective. Shisei is the result of that need—a simple, smart guardian for your posture."
Vitalii Migunov
Creator of Shisei
Shisei processes all vision data locally using the Apple Neural Engine. No video is recorded, and no data leaves your device.
Processed locally
Zero storage
No tracking