Dilly is made for students in kindergarten through grade 12.
A younger child
If the birthday is younger than a usual kindergartener, Dilly makes no guess. The screen says, "Tap the grade that fits." Kindergarten is the first choice. We have not published a lower age.
An older student
If the birthday is older than a usual 12th grader, Dilly says, "Dilly is for kindergarten to 12th grade, so we guessed 12th grade. Tap a different one if that isn't right."
Adults
A grown-up can use Dilly for themselves. See Can an adult use Dilly for themselves?
Home or school
Pick the grade that fits your child, wherever they learn. Nothing locks, and you can change it later. See How do I change my child's grade?
