Set your baseline.
Show Plumb your upright, slouching, and looking-down postures. It learns the differences for you.
Your AI posturecoach for Mac.
Plumb learns your posture, notices sustained slouching or looking-down drift, and gives you a gentle nudge to reset, privately on your Mac.
No card. Trial starts only when monitoring begins, not during setup or calibration.
The quiet loop
Present when useful. Quiet by default.
Plumb watches for a sustained change, helps you return, then becomes silent again.
It learns your normal.
A short calibration teaches Plumb your upright, slouching, and phone postures.
Your posture is personal. Plumb learns yours.
A short calibration shows Plumb what upright, slouching, and looking down look like for you. From then on, it watches for sustained drift entirely on your Mac.
Work normally.
On-device pose estimation measures sustained head and shoulder drift while you get on with your day.
Reset when it matters.
A reminder appears only after the drift lasts long enough to matter, so ordinary movement never becomes noise.
Your camera data stays on your Mac.
Camera frames are processed locally, converted into posture measurements, and discarded immediately. Only the calibration and aggregate posture data needed for reminders and progress stays on your Mac.
Posture processing stays local
Pose estimation happens locally using your Mac’s processor.
Camera frames never leave
No camera frame is uploaded to Plumb, the cloud, or any third party.
Camera frames are never stored
Each image is discarded as soon as posture measurements are extracted.
Only useful posture data remains
Plumb keeps the measurements needed for reminders and progress, not a recording of you.
See how your posture changes.
Plumb turns daily sessions into a clear view of upright time, phone habits, recovery, and week-to-week change.
Spot the pattern.
See when slouching or phone use tends to appear across your day.
Measure recovery.
Understand whether a reminder helped and how quickly you reset.
Compare the trend.
Watch upright time change from one week to the next.
Simple pricing
Try it. Then keep it your way.
Your free three-day trial starts only when monitoring begins. No card, account, or camera upload.
Founding offer
$45Plumb for life.
Pay once while Plumb is early. The standard lifetime price is $89.99.
$3.99
per month
$34.99
per year
$89.99
once
Two Macs per licenseYour posture history stays local to each device.
Feel better at the end of your workday.
Build better desk habits with quiet reminders that appear only when sustained drift needs your attention.
Try Plumb freeFree for 3 days. No card. Trial starts only when monitoring begins.
Made for MacFits quietly into your workday.
On-device AIAll posture processing stays local.
No stored imagesCamera frames are discarded immediately.