JAXILLMIND FAMILY
Games that grow every kind of thinking — from remembering to creating. 36 of 36 ready to play.
Hi. I am Jaxill. Let's find some patterns.
Twelve small games that practice reasoning — patterns, memory and logic. Two games a day, about ten minutes, then done. There is nothing to buy and no score to chase.
Your child's name and play stay on this device and are never sent anywhere. Nothing is collected, and the app never connects to the internet.
Two games a day, ten to fifteen minutes, across six weeks. Short and finished beats long and forced. A missed day costs nothing — pick it up next time.
A question for a grown-up
This keeps children from leaving the app on their own. It is not stored and it is not a test of anything.
A grown-up's email, please.
This is the only thing we ever collect, and it is yours, not your child's. We use it to send you a weekly note. Your child's play stays on this device and is never sent to us.
Because we never receive your child's play, we cannot restore it if this device is lost.
That's the free trial.
All twelve games are open from the first tap. Progress stays on this device. There is nothing to buy and no account to make.
Settings
Players
Ask Jaxill
Jaxill answers from what this app is built on. Same answer every time, and it says so when it does not know.
Sounds
Short tones mark a correct answer and the beats of a sequence. Every game can be played with sound off — the sequence game lights up as well as beeping, so nothing is lost.
Sound starts after the first tap. Tap Start once and the tones will play — that is the device's rule, not a setting.
This device
MINUTES ON TASK is the dose, and it matters more than how many times a game was opened. RIGHT is accuracy across the items answered. TOP LEVEL is the difficulty your child sustained; it carries forward, so it climbs over weeks rather than resetting.
Deleting the app removes all of it too. Because we never receive any of it, there is no copy anywhere else and no request you need to send us.
Ask Jaxill
TrainsInfer the rule behind a set of shapes and pick what comes next — matrix and pattern induction.
Item formatItem format modelled on Raven's-style matrices — the five rule types in Carpenter, Just & Shell (1990): constant, progression, figure-addition, distribution-of-three, distribution-of-two.
TrainsKeep a growing sequence or set in mind and act on it — span and updating.
Item formatItem format modelled on span tasks — a sequence that grows and must be reproduced in REVERSE order (backward span).
TrainsSee numerical relationships and magnitudes — reasoning about quantity, not arithmetic recall.
Item formatItem format modelled on number-relations items — magnitude and relation, not arithmetic recall.
TrainsTest whether a statement or choice must be true given the rules — verification and evaluation.
Item formatItem format modelled on conditional-inference items — must be true, might be true, cannot tell.
TrainsBuild and transform shapes in space — construct a target pattern piece by piece.
Item formatItem format modelled on block-construction and mental-rotation items.
TrainsProduce many valid answers from an open prompt — divergent thinking.
Item formatItem format modelled on divergent-production (fluency) tasks — the weakest link to Gf; included for range, not as a claim.
👪 Grown-ups — today's report
A summary is emailed to you automatically each day (goal: all 12 games). Tap to send today's now.
Every game is compiled from one XML node — blocky by design, offline, no ads, no third-party tracking.