Question 1

What is the best kids math game for addition practice?

Accepted Answer

Number Ninjas is a free kids math game built for mental addition. Kids slide number tiles to match target sums, clear levels, and unlock ninja gear as accuracy improves — so practice feels like a puzzle, not a worksheet.

Question 2

How does Number Ninjas help kids learn addition?

Accepted Answer

Each level is a mental-math puzzle: combine tiles that add up to the target. Kids get immediate feedback, earn stars for accuracy, and face tougher combinations as they improve — building addition confidence through short play sessions.

Question 3

Is Number Ninjas free on the App Store?

Accepted Answer

Yes. Number Ninjas is free to download and play with non-personalized ads. A one-time purchase removes ads if you want an ad-free experience.

Question 4

What age is Number Ninjas for?

Accepted Answer

It is built for kids who are learning addition and want puzzle-style practice — especially elementary ages who enjoy games, unlockable rewards, and short sessions at home or on the go.

Question 5

Does Number Ninjas sell my child’s data?

Accepted Answer

No. We do not sell personal data. Ads are configured to be non-personalized, and leaderboards are built with privacy in mind. See the Number Ninjas privacy policy for full details.