⚒️ MATHSMITHfree · built by a family · no ads, ever
Adaptive practice, hand-forged

Math practice your kid won't dread.

Built at a kitchen table by a parent whose kid came home with a 63% and a knot in his stomach. Mathsmith runs on the learning science the big platforms skip — and refuses the mechanics that make practice feel like punishment.

Free forever No timers No score cliffs No accounts to lose
A boy concentrating happily on his written work
~85%success rate, held by design — the sweet spot where learning actually happens
no tears at
this table ✏️
spaced reviewinterleaved sessionsmistakes named, not punishedten minutes a night
The kitchen-table story

The school's math app locked our kids out. So we built a better one.

The district's practice-app logins broke mid-semester — again — right as a module test landed hard. So one weekend, the practice site got rebuilt from scratch: every skill matched to the exact modules the teacher emails home, every wrong answer met with the name of the actual mistake ("you flipped the first fraction — only the second one flips"), and review scheduled on the forgetting curve instead of the grind.

When the teacher's plans change on a Sunday, the site matches them by dinner. Our in-house testing department is eight, ten, and twelve years old, and they are merciless.

Two kids working on paper together at a table
ten focused minutes beats a tearful hour
Albert Einstein, 1947 portrait (public domain)
“Do not worry about your difficulties in mathematics; I can assure you that mine are still greater.” — Albert Einstein, in a 1943 letter to a junior-high student
The part that matters most

Why kids don't cry here

Most practice apps borrow their mechanics from casinos and standardized tests. Mathsmith borrows from good coaching — and from the research on how confidence is actually built.

🎉The biggest celebration is for fixing your own mistake

A first-try correct gets a cheer. Correcting yourself on the second try gets the parade — because error-recovery is the exact skill a struggling kid needs to believe in.

🛡️Misses never erase progress

No score that collapses when you're tired. A miss means a hint and a second swing for half credit — then the same idea returns a few problems later for another shot.

🌙Hard skills get parked, not ground

Eight frustrated attempts on one skill? It goes "back in the coals" until tomorrow, with a short video to watch instead. Grinding a tired kid teaches only dread.

🗣️Praise for the process, never the person

"Precise work," not "you're so smart." The research here is unambiguous: person-praise builds fear of failure; process-praise builds persistence.

The honest scorecard

Mathsmith vs. IXL

⚒️ MathsmithIXL
How practice is structured Mixed-skill sessions + spaced review on a 1/3/7/14/30-day memory schedule — the two highest-utility techniques in the learning literature One skill at a time until a score threshold — feels productive today, reliably loses to interleaving on next month's test
When your kid is wrong The exact misconception gets named, then a retry. The app knows the difference between "flipped the wrong fraction" and "forgot to flip at all" A generic worked solution — and the famous SmartScore drop that can erase three answers' worth of points in one late miss
Feelings at the table No timers, no cliffs, recovery celebrated loudest. Designed by the people who eat dinner with the student Anxiety is load-bearing: search "IXL SmartScore" and read what parents say
Fit to the actual class The teacher's Sunday email becomes deployed practice by dinner — this week's test modules lead the queue 4,000 pre-built skills you match to the syllabus yourself
Your kid's world Each learner gets their own themed site — name, mascot, colors, celebration style — generated from four onboarding questions and refined until they love it One interface for 16 million students
Where IXL genuinely wins Coverage is exactly what your kid is learning right now — and only that Pre-K–12, every strand, calibrated on millions of students, with polished teacher dashboards. Real advantages, honestly stated
Price Free. It costs us about $0/month to run ~$120+/year for families; $8–12 per student per subject at district scale

— we kept the rows IXL wins. fair fights only. —

Under the hood

Every mechanic has a citation

Retrieval practice

Every problem is a memory retrieval event — the most robust finding in learning research.

Dunlosky et al., 2013
Spacing & interleaving

Skills return on an expanding schedule, mixed within sessions; interleaving roughly doubled delayed-test scores in classroom RCTs.

Rohrer et al.
Worked examples first

New skills open with a watched example before the first attempt, then fade to independence.

Sweller
Misconception-level feedback

Wrong answers matched against known error patterns and named specifically.

Hattie & Timperley, 2007
Process praise

Praise targets the method, never the child — the difference between building persistence and building fear.

Mueller & Dweck, 1998
Self-explanation

Periodic "why does that work?" prompts — one of the strongest, least-shipped effects in the field.

Chi et al.
Calibrated difficulty

An accuracy governor holds sessions near ~85% success — the empirically optimal error rate.

Wilson et al., 2019
No timed pressure

Zero countdowns, anywhere. Timed drill is directly linked to math anxiety.

Boaler
See it

What a kid actually opens

Each learner's site is their own little world. This one belongs to a ten-year-old who loves a certain heroic bird — his choice, his colors, his cheering section:

A themed practice home screen with a tappable skill grid
his home screen — this week's test modules lead the queue
A worked example with a number line and a video link
new skills start with a worked example + a video for shaky days
✨ The theme machine: four onboarding questions — favorite character? favorite colors? the vibe? what makes practice fun? — become three custom looks. If none land, the kid types why ("less pink, more dragons") and it forges new ones. The whole personality of the site is theirs, which turns out to matter enormously to actually opening it.