Seven bones carry your head.
Crane watches how you hold them while you work, and says something only when it needs to.
Your head weighs about 5 kg.
Lean forty-five degrees toward a screen and the load on your neck is about 22 kg. The weight of a small child, held up by the muscles under your skull.
Most desk days are spent somewhere on that curve.
Hansraj K. Assessment of stresses in the cervical spine caused by posture and position of the head. Surgical Technology International, 2014.
Where the head turns.
The axis is the pivot every glance and every nod runs through. It is also where stiffness usually starts, months before it becomes something you would call pain.
Neck pain ranks fourth among all causes of years lived with disability, worldwide.
Hoy D et al. The global burden of neck pain. Annals of the Rheumatic Diseases, 2014.
It watches, so you don't have to.
Your webcam and an on-device pose model read your neck angle a few times a second. No video is stored, and none leaves your machine: the model runs locally, offline.
A nudge, not a nag.
Slouch for a while and a small banner slides in. Sit back up and it thanks you and leaves. No streaks, no guilt.
Breathe with it.
Nine guided patterns, box breathing to 4-7-8, run beside the posture guard. A slow exhale drops your shoulders. Your neck follows.
Fifteen ways to pace an hour.
Each profile is a research-backed rota of sit, stand, walk and stretch, sized for a particular kind of day. Pick the one that matches yours, or rearrange it.
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Free
Balanced Rhythm
Thirty minutes of work, then fifteen spent standing, walking and stretching.
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Pro
Deep Focus
An hour of uninterrupted flow, then a full half-hour of recovery.
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Free
Active Boost
The most active rota: sixteen minutes seated, fourteen on your feet.
Seven vertebrae. One payment.
Seven days free, then $54.99 once. Mac and Windows. Nothing to subscribe to.