mySugr earned its place as the category's default logbook: quick entries, clean reports, an estimated HbA1c, and the credibility of years in clinics. People rarely leave it because it is bad. They leave because of what it is — a manual-first logbook — and the right alternative depends entirely on which part sent you looking.
Disclosure, as everywhere on this site: CarbLens AI is our app and it is marked below. It is one of five directions here, and for some rows it is genuinely not the right pick.