+ Add → Blood glucose.
You do not need a CGM
Most people logging glucose here use a finger-prick meter. Everything works the
same way — the Glucose card, the daily average, the history.
If you use a CGM — a FreeStyle Libre 2+, an Ottai, or
anything that can bridge — readings arrive automatically and you can still add
finger-pricks alongside. They sit on the same axis, which is exactly what makes
them worth comparing.
What to enter
The number, in mmol/L or mg/dL depending on your units.
How it was measured — meter, sensor, lab.
Where the sample came from — finger-prick, and so on.
When, relative to eating — fasting, before a meal, after a meal, random.
The timing matters more than people expect. 7.8 mmol/L an hour after lunch and
7.8 first thing in the morning are very different facts, and without the label
the app cannot tell them apart.
Where it goes
Unlike most markers, glucose does not go into your daily summary. It goes into
the timeseries store — the same place a CGM writes.
That is deliberate. It means a finger-prick and a sensor reading share an axis,
which a single daily figure could never do.
Two readings in one minute
Fine. The app keeps them separate rather than collapsing them.
If a reading looks implausible
The app refuses values outside a sensible range and tells you why — most often
because a mg/dL number was typed while the app was in mmol/L. The message names
the likely cause rather than just refusing.
Ketones
If you also test ketones, those are their own
marker.