No ads
Nothing flashy, no reward loops, and no advertising networks. Practice, then put the device down.
No tracking
We do not collect analytics, sell data, or run trackers. There is no account and nothing to sign in to.
Nothing stored with us
Names, scores, and settings stay on the device. We cannot see them, recover them, or share them.
Why we built this
Help kids learn math facts, then go use them.
This app was built for a daughter who needed to memorize math facts — without the animations, rewards, and game mechanics that keep kids glued to a screen.
Timed flashcards cover addition, subtraction, multiplication, division, squares, cubes, and square roots. Parents can set ranges, a PIN, and optional spoken answers. Progress is saved locally so practice can pick up where it left off.
The job is simple: help your child learn, then get out of the way.
On-device profiles
First names and scores live in local storage on the phone or tablet — not on our servers.
Parent PIN
Settings can be gated with a numeric code. We cannot reset it, because we never receive it.
Optional voice
Spoken answers use the device’s own speech tools. Audio is not sent to Math Mastery Lab.
Print locally
Share or print a session summary from the device when you choose. We never receive a copy.
Quiet practice. Clear progress.
Customize the facts, run a timed round, and review what still needs work — all without creating an account.
Start learning. Keep the data.
Math Mastery Lab is free of ads, tracking, and subscriptions. Download it, practice on the device, and leave nothing behind in the cloud.
Questions? Visit Support or read how we handle data in the Privacy Policy.