Math facts · real game currency

They do the math.
They unlock the Robux.

You buy the gift code once and seal it in their vault. They can see the prize the whole time — but it only opens once they've earned it, one fact at a time.

Set it up — 2 minutes I already have it

Free. No subscription. Your kid never signs in to anything.

How it works

Three moving parts. That's the whole thing.

No subscription to cancel, no balance we hold, no account for your kid.

You load the vault

Buy a digital code — 400 Robux, 1,720 Minecoins, a $10 Xbox card — and paste it into the parent tab. Or buy it straight from the app and skip the pasting. You decide what it costs them in coins.

They earn it

Daily goal, adaptive drilling that chases the facts they keep missing, a streak they don't want to break. Right answers pay coins. Fast answers pay more.

The code unlocks

They hit the number, tap Open, and the code is theirs — with a button straight to the redeem page. Until that moment they can see the prize but never the code.

Four levels

Harder work pays more. They can feel it.

They pick their level at the start of every session. Beginner is multiple choice for kids still counting on fingers; Master is a seven-second clock with everything mixed together.

🌱

Beginner

Pick from four answers, no clock

×1

📗

Learner

Type it in, take your time

×2

⚡

Pro

Beat the timer bar

×3

👑

Master

Fast clock, all skills mixed

×4

What they practise

Facts, and the ones after facts.

Pick a skill and narrow it to the slice they're actually working on this week — just the 4s, 5s and 6s, or only halves and quarters.

✖️ Times ➗ Divide ➕ Plus ➖ Minus 🍕 Fractions of a number ⚖️ Equivalent fractions

Straight answers

What this is, and what it isn't.

What you get

A PIN-locked parent tab — payouts, settings, and the week at a glance
Per-fact mastery tracking, so you can see exactly which facts they're fighting
A daily coin cap so they can't grind you for money
Auto-unlock, or approve every payout yourself
Works offline, on any tablet, no login screen for a kid to fail

What it doesn't do

It never touches their Roblox account — nobody can. Roblox has no account-to-account transfer, so the last step is always redeeming a code
It doesn't hold your money. You buy the code; it just decides when they see it
It doesn't collect anything about your child. No email, no login, no analytics
It isn't a subscription. There's nothing to cancel
Kids never get a login. Only a parent has an account

Can it send Robux straight to my kid's account?

No, and neither can anything else. Roblox has no account-to-account transfer — even you can't send Robux to your own child from your own account. Every legitimate route ends in a redemption code. Anything promising otherwise wants their password.

Where do the codes come from?

Wherever you like — Roblox.com, Amazon, Target, the Microsoft store. Paste it into the parent tab and it's sealed. You can also buy one inside the app, which drops it into the vault automatically.

Can they cheat?

Wrong answers get re-asked later in the same session, so guessing costs them time rather than earning coins. The daily cap limits any grinding, and codes are hidden until they're unlocked. They could dig them out with browser developer tools — if you have that kind of kid, leave auto-unlock off and approve payouts yourself.

How much will this cost me?

Exactly what you choose. You set how many coins a fact is worth and how many coins a dollar of reward costs, and the parent screen shows you the resulting worst case in dollars per week before you hand over the iPad.

What happens to their progress if I clear my browser?

Nothing, if you made an account — sign in on the new device and the streak, the coins and the sealed codes come straight back. Without one it's gone, so there's also an Export button in the parent tab that writes a backup file.