Adaptive placement
A short, no-pressure diagnostic places each child in the skill graph — never too easy, never a wall.
Grades 2–4 · Math & Reading
Learning that meets your kid exactly where they are.
Otterly is an adaptive Math and Reading platform for kids — with a diagnostic that places them just right, mastery that's truly earned, and Otis the otter cheering the whole way.
Free for families · No trackers in the kids' app
Built around how kids actually learn
Mastery, not minutes
A skill counts as mastered only after correct answers spread across different days. Progress is earned, not clocked.
Spaced review
Mastered skills resurface on a decaying schedule, so what's learned actually sticks.
Read-aloud everywhere
Every instruction, problem, and choice can be read aloud — a must for younger and struggling readers.
No-fail framing
Wrong answers never cost points or lives. They just gently delay the next reward.
Otis cheers along
Stars, streaks, and a friendly otter named Otis keep the learning feeling like play.
Math
Counting, place value, addition and subtraction, multiplication, and an intro to fractions — sequenced by an explicit skill graph so prerequisites come first.
Reading
Leveled short stories with comprehension questions, tap-to-select word work, and audio narration for every story.
For teachers
Run a class, see real progress.
Create a class, share a join code, and parents opt their child in from their own account — two-sided consent, always. You get a roster and read-only progress for every enrolled student. Archive a class at year's end and access ends cleanly; the child's data always stays with their family.
Create a class- Unique join code per class
- Parent-initiated enrollment — no child added without consent
- Read-only student progress & roster
- Time-bounded access that ends with the term
Ready when your learner is.
Set up a free family account in a couple of minutes.