Are you sure that’s the correct name for the app? I’ve never heard of it, but the not so nice name made me curious and I went on a search for it but can’t find it
I use Myfitnesspal to record all my food & carbs & for me calories too, but sometimes I find it a bit fiddly I do less than 20g carb a day but sadly I’m one of those that also has to watch my calorie intake too