A range, not a point
A phone camera, a photo or a diary can only support a range. We show the band — a low and a high — instead of a fake exact figure that would flip the moment the light changed.
Most health apps hand you one confident number. Ours don’t. Here’s the small vocabulary of honest marks you’ll see across every Hale Hearth app — and why we use them.
A phone camera, a photo or a diary can only support a range. We show the band — a low and a high — instead of a fake exact figure that would flip the moment the light changed.
Beside a read you’ll see LOW, MEDIUM or HIGH. It tells you how much to trust today’s number, so a shaky read never masquerades as a sure one.
When an app can’t see enough — the light shifted, the frame was off — it holds off and asks you to retake. A withheld read beats a misleading number.
Where we track change, we compare you to your own past self — never a leaderboard, never a ‘looks score’, never someone else.