Private posture coach
You can't feel yourself slouching.
Now you can see it.
A live posture score in your menu bar — head, shoulders, screen distance. Sitful catches the forward-head slouch behind tech neck and nudges you only when it matters.
Up to 63% of office workers get neck pain each yearOccupational-health research
- 100% on-device
- 7-day money-back
- Made for Apple Silicon
Why Sitful
Most posture apps get muted by week two.
They nag on a timer, buzz at every twitch, or make you wear something you have to charge. Sitful measures your real posture and speaks up only after you've genuinely slouched — so it stays calm enough to actually keep running.
Calm, not naggy
It speaks up only after sustained slouch, learns from what you dismiss, and stays silent on calls. A coach, not a timer.
A score you can see
On-device vision scores your posture 0–100 every second — with a breakdown of head, shoulders, and screen distance.
AirPods accuracy
Supported AirPods add precise head-tilt and fuse with the camera, so a nod doesn’t fool it. All on-device.
100% private
No cloud, no account, no telemetry. Frames are scored on your Mac and instantly discarded. Works offline.
See it work
Your posture, scored live.
Lean in and the score drops; ease back and sit tall, and it climbs. Real-time keypoints track your head and shoulders, and a calm nudge appears only when you need it — all on-device.
The nudge moment
Catch the slouch you can't feel.
Accuracy you can trust
Your AirPods know which way you're facing.
A camera guesses your head angle. Supported AirPods measureit — fusing real motion data into your score so a tilt of the head doesn't fool it. It's the difference between a guess and a reading.
- Sub-degree head-tilt from CMHeadphoneMotion
- Works camera-only if you skip the AirPods
- Fusion runs entirely on-device
How it works
From slouch to standstill in three steps.
Calibrate in 15 seconds
A quick ergonomic audit learns your personal upright baseline.
Sitful watches gently
Camera + AirPods motion fuse into one honest, real-time posture score.
A nudge, only when you need it
Sitful speaks up only after you’ve genuinely slouched — never on a dumb timer, never by blurring your screen. The better you sit, the quieter it gets.
Privacy by architecture
Nothing ever leaves your Mac.
Not a design choice we can quietly reverse — it's how Sitful is built. Frames are scored on-device and instantly discarded. No account, no cloud, no telemetry. Turn off your Wi-Fi and it still works.
Off the clock
When you clock off, Sitful does too.
No background nags, no guilt loops. Sitful only watches while you're actually at your desk.
Pricing
Simple pricing.
7-day no-questions money-back guarantee.
Common questions.
- No. Sitful processes frames on-device with MediaPipe and immediately discards them. Nothing is saved, nothing is sent over the network during tracking.
Start today
Sit better, without thinking about it.
7-day money-back guarantee. Your data never leaves your computer.
- macOS 12+
- Apple Silicon native
- 7-day refund