Kidiby Dihardja Software

Kidi Monster Math

Quick sums. Friendly monsters. One meteor to stop.

Kidi Monster Math is a math game for children: a sum appears, the meteor starts racing toward the earth, and four monster friends hold up the answers. Tap the right one to push the meteor back, and keep going for a new best score.

The menu: the Monster Math title, buttons for Plus Minus, Multiply Divide and Mix Mix, and the four monsters peeking up from the bottom

what's inside

Made for small hands

Children practising their sums. Plus Minus starts with small numbers; Multiply Divide and Mix Mix are there for when times tables come along.

Three stages

Plus Minus, Multiply Divide, and Mix Mix, which brings all four together as the levels go up.

It grows with your child

Every 5 right answers is a new level, with bigger numbers and a meteor that moves a little faster.

Find the missing piece

From level 4 in Mix Mix the question mark can hide either number, or even the sign, not just the answer.

Craby, Dindin, Mewty and Squidy

Each monster has its own happy and sad voice, and the screen flashes green for a right answer.

Mistakes cost time, not the game

A right answer pushes the meteor all the way back; a wrong one only lets it creep closer.

Nothing to sell, nothing to track

No ads, no in-app purchases and no account. The best score is kept on the device.

pricing

What it costs

Free. There are no ads and no in-app purchases: every stage and level is in the app from the start.

Privacy

Kidi Monster Math collects no personal data: no accounts, no ads, no analytics, no tracking and no purchases. The best score, the last round played and the sound setting stay on the device. The one thing that leaves the device is the update check, which sends the app's id and version, the platform and its operating system version, the updater's version, whether it is running on an emulator or a test build, the store it was installed from, and a random install id that is not linked to you or your child.

How every Kidi app handles privacy

questions

Good to know

Who is it for?

Children practising their sums. Plus Minus starts with small numbers; Multiply Divide and Mix Mix are there for when times tables come along.

Is this the same Kidi Monster Math from before?

Yes. It is an update to the original app, with the same rules, the same monster voices and music, a new cut-paper look, and the ads taken out.

What happens on a wrong answer?

The monster looks sad, the screen flashes red and the meteor jumps a little closer. The round ends when it reaches the earth.

Does it need the internet?

No. It only goes online to check for small updates.