| 0 | No pain at all. |
| 1–3 | Mild. Noticeable, naggy or twingeing, but you carry on with what you were doing. |
| 4–6 | Moderate. Hard to ignore. It interrupts concentration and you change what you're doing to accommodate it. |
| 7–9 | Severe. Dominates attention. You stop, lie down, or can't hold a conversation properly. |
| 10 | Worst imaginable. Emergency-department pain. |
Rate the peak, not the average. Consistency matters more than accuracy — the trend over weeks is only readable if you score the same way each time.
The timer sits at the top of the screen. Tap Settled when it eases and the entry saves itself.
Entries live in this browser on this device only — nothing is sent anywhere. Clearing Safari's website data would erase them, so take a backup every week or two.