TopShelfNew in the 1.1 preview · opt-in
Your Mac, looking out for you.
A privacy-first wellness companion that helps you understand screen habits, eye movement patterns and personal wellness trends—right from your Mac.
Sense is in the 1.1 preview you can download today, switched off. Turn it on in Settings › Sense, agree to what it does, then press Start; macOS asks for camera access once. Every camera-based number is an estimate that has not been validated yet.
What Sense does
Blink awareness
A gentle sense of how often you blink while you work, so long stares at the screen don't go unnoticed.
Screen-break reminders
Nudges to look away and rest your eyes, in step with the break reminders TopShelf already has.
Head-position insights
See how much of your time you face the screen, and get a quiet prompt to move when your head has stayed still in one position for a long stretch.
Personal wellness check-ins
A short, optional check-in on how you feel, kept alongside your day so you can spot patterns over time.
Historical charts
Simple charts of your own trends across days and weeks, on your Mac, for your eyes only.
Experimental pulse tracking
An experimental estimate of rhythm from subtle changes in the camera image. It is not a medical device and not a heart-rate monitor; treat it as a curiosity, not a reading.
Private local-first storage
Everything Sense notices stays in a local store on your Mac. No account, no cloud, no uploads.
Complete control over your data
Export it as CSV or JSON, delete some or all of it whenever you like, and choose how long anything is kept.
Private by design
Sense uses the camera, so here is exactly what it does and does not do.
- Off by defaultSense does nothing until you turn it on, and asks for camera access only then. Turn it off and it stops.
- Processed on your MacThe camera image is analysed on the device, in real time. It is never sent anywhere.
- No video recordedSense keeps numbers, not pictures. No frames, clips or photos are saved.
- No face recognitionSense does not identify who is in front of the Mac, build a face profile or compare faces.
- No uploadsThere is no account, no sync and no telemetry. Nothing leaves your Mac.
- Your data, your retentionExport everything as CSV or JSON, delete it at any time, and set how long history is kept.
Not a medical device. Sense is a wellness companion, not a medical device. It does not diagnose, treat or monitor any health condition, and the experimental pulse estimate is not a heart-rate monitor. If you have a health concern, talk to a professional.