Start here · 2 min read
How your score works
What the numbers mean — and why your trend stays honest.
During a check, there’s no number
While a check runs, Plumb shows a small posture figure that mirrors you — it tips forward as you slip and settles upright as you lengthen, with a word naming the state and a colour that warms when you’ve eased forward. No live 0–100 score, deliberately: a twitchy number tempts you to chase it instead of just sitting well; the figure shows you which way to move without the noise.
What “neutral” actually is
When you set your neutral posture, Plumb captures the upright posture you sit in — not a textbook ideal. Everything afterward is measured against that. “Sitting tall” means you’re close to your own neutral posture; “leaning in” means your head and shoulders have crept forward of it.
The number lives in Insights
Your history uses a 0–100 score: 70 and above means you were sitting tall, and higher is closer to your neutral posture. The camera reads your neck, shoulders, and upper back — the parts a front-facing camera can see honestly. It can’t see your lower back; that’s a future hardware story, not a judgement of your spine.
Why your trend stays honest
You can make the in-session nudges more or less sensitive in Settings. That changes how easily a nudge fires — but it never rescores the sessions you’ve already logged. Tightening your sensitivity won’t make last week suddenly look worse. Change the nudges whenever it helps; your past history stays put.
Plumb is a wellness and posture-awareness tool, not a medical device. It doesn’t diagnose, treat, or monitor any condition. If anything about your body concerns you, see a qualified clinician.
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