ADAPTIVE MATHS · AGES 8–12
Maths that adapts to your kid, not the other way round.
KRISTALL uses Bayesian knowledge modelling to serve each child exactly the practice they need — no timers, no stress, no leaderboards. Just steady, quiet progress.
HOW IT ADAPTS
The algorithm works. Your child just practises.
Tracks what's mastered
Every answer — right or wrong — updates the model. KRISTALL knows the difference between a lucky guess and solid understanding.
Serves the next right task
Not too easy, not overwhelming. The next question is always chosen to sit just at the edge of what the child already knows.
Backs off when it's hard
Struggle is good — panic is not. When confidence drops, KRISTALL steps back to firmer ground and rebuilds from there.
PROGRESS AT A GLANCE
Know exactly where your child stands.
The parent dashboard shows mastery per topic — updated after every session. No grades, no percentages to chase. Just a clear picture of what's solid and what needs a bit more time.
FOR PARENTS
You stay informed. Without hovering.
Weekly email digest
A plain-language summary of what your child practised, where they're strong, and what comes next.
Topic breakdown
See exactly which concepts are solid, which are in progress, and where a little extra practice would help.
10 minutes is enough
Short daily sessions outperform long weekend marathons. KRISTALL is designed around that reality.
PRICING
Simple and honest.
Try KRISTALL with one child at your own pace.
- ✦1 child profile
- ✦Core topics (numbers & ops)
- ✦Progress overview
- ✦No credit card needed
Full adaptive engine for up to 3 children.
- ✦Up to 3 child profiles
- ✦All topic areas
- ✦Weekly parent email
- ✦Difficulty personalisation
- ✦Priority support
Classroom tools, teacher dashboard, bulk pricing.
- ✦Unlimited students
- ✦Teacher & class view
- ✦Curriculum alignment
- ✦Rostering & SSO
- ✦Dedicated onboarding
FAQ
Honest answers.
What age is KRISTALL designed for?
Children aged 8–12 get the most from KRISTALL. The topics align with typical primary-school curricula, and the interface keeps reading demands low enough that children can work independently.
How is it different from a maths worksheet app?
Worksheets give every child the same questions in the same order. KRISTALL builds a model of each child's knowledge and selects questions specifically for them — so it stays challenging without becoming frustrating.
Will it replace school lessons or homework?
No — and it's not meant to. KRISTALL is a 10-minute daily practice companion. It reinforces what school introduces; it does not teach new concepts from scratch.
Is there any pressure — scores, streaks, leaderboards?
None. There are no timers, no streak notifications, and no rankings. Progress is shown to parents privately; it is never displayed to children as a score to chase.