Numina
A math game for kids, built on the science of how children really learn.
Download on theApp Store
Why parents trust Numina
Built on learning science
The number line, spaced practice, interleaving and mastery: methods decades of education research support. See the research.
Adapts to every child
An adaptive engine keeps each child in their just-right zone: challenged, but rarely frustrated.
Every answer is correct
No AI guesswork. Every question, answer and hint is created by our own engine and checked for correctness, so the math is always right.
Made for families
More than one child? Each gets their own profile, with separate progress, medals and Sparks.
Private by design
No ads, no tracking, no data collection. Built to comply with children's-privacy laws like COPPA, and it works offline.
Joyful, not addictive
Hand-crafted medals and glowing Spark friends celebrate real mastery, never empty streak pressure.
One journey, six math worlds
Numina covers the heart of primary-school arithmetic, about grades 3 to 6. Each world unlocks the next as your child grows.
Sparkfield
Number sense and first sums.
The Tens Foundry
Place value and bigger numbers.
Array Grove
Times tables, multiplication and division.
Fraction Peaks
Fractions, equivalence and unlike denominators.
Decimal Caverns
Decimals and comparing.
Ratio Reach
Integers and percentages.
Teach, don't just drill.
Every new idea begins with a short, friendly explanation before your child answers a single question. Understanding first, practice second.
Download on theApp StoreQuestions parents ask
Is Numina really free?
Yes, completely free. There are no ads, no in-app purchases, and no subscriptions.
Does Numina work offline?
Yes. Everything works offline after you download it. Optional iCloud sync keeps a child's progress in step across their own iPhone and iPad.
What ages is Numina for?
Numina is designed for children roughly 8 to 11 years old, about grades 3 to 6, from first sums and number sense up to fractions, decimals and percentages.
Does Numina use AI to make the questions?
No. Every question, answer and hint is created by our own engine and checked for correctness, so the math is always right. There is no generative AI anywhere in the learning content.
Can more than one child use it?
Yes. Each child gets their own profile with separate progress, level, streak, medals and Sparks. Add or switch children in the grown-up area.
Is my child's data safe?
Yes. Numina collects no data and uses no third-party tracking or analytics. It is built to comply with children's-privacy laws like COPPA, and any sync uses your own private iCloud.