Use your math skills to defend your treehouse against a hungry tomato and his robotic army in this fun action packed game! Choose between ninja stars, smoke bombs, or ninja magic - and choose your upgrades wisely!

* Works on your iPhone, iPod Touch, and iPad - buy once, works everywhere!
* Action-packed strategy in the castle defense genre!
* The primary goal is to have fun - but you'll also greatly improve your Math skills along the way!
* Choose your weapons - from ninja stars to fire magic - and upgrade their power along the way!
* Humorous story starring the ever-hungry Tomato-San, who is building a robotic army to steal your tasty math treasure!
* Math options are fully customizable - disable/enable operations, or even toggle number ranges to practice!
* Great for all age groups, from 7-99.

Say goodbye to boring flash cards - and hello to Math Ninja!

***** "Cat-bots? Giant tomatoes? This is a job for Math Ninja!"
***** "My seven year old daughter is thoroughly enjoying the Math Ninja app. It combines an arcade style game with math practice and it does it in a way that's a lot of fun."
***** "Math Ninja does a great job of balancing video game play with testing math skills into a cute and fun application."

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What’s New

Version 2.01

This app has been updated by Apple to use the latest Apple signing certificate.

+ Adds rotating throwing stars!
+ Fixes bug with app not saving custom math ranges
+ Fixes bug with interface not showing changed math options
+ Removes bug where Tomato-san was making faces at you while you played the game :]

Ratings and Reviews

4.3 out of 5
273 Ratings

273 Ratings

cshershey ,

One of the best math apps ever!

My boys really love this app (and I've been known to play a few rounds myself:) great mixture of math and video-game like play! The only thing I would change is to have an audio reading of the story so it is more user friendly for beginning readers. Still, a good investment. I like that I'm not asked to buy expensive add-ons and that there is instant reward with points (virtual money for weapons) and the answer is given if they don't get it the first time. My 4 year old is adding and subtracting like a 1st grader after just a few lessons because he has this app to practice with!

Rather peas on strawberry cake ,


I'm 24 and I had a kid when I was 21. So now he's 3 he doesn't go to preschool at all. He puts in a random answer and then puts in the correct answer which the game told him. Also I spent $2.00 on this app my child does not learn anything and he finished easy, medium, and hard in 5 minutes no exaggeration about this.

No school should ever download this game cuz it doesn't teach children how to add, subtract, multiply, or divide. It teaches them nothing and I don't want my child to hate school and think its a waste of time cuz thats what it says in the introduction of the 14th level.

Plus if a kid is really stuck on a problem if ur kid were blind then they wouldn't be able to pass the problem. So, plz I'm begging u not to pay $2.00 dollars for this app its a waste of money doesn't teach ur kid anything and absolutely will not entertain ur kid for more than 20 minutes.

Mtkobylka ,

Very motivating!

My kids actually WANT to play this!! It has help in their math fluency greatly!
The only reason I didn't give it 5 stars is you can only save one game/profile. This is a problem for us since I have a 4th grader, and a kindergartner.
4 grader is obviously more advanced, and working on multiplication and division. While my kindergartener is just learning simple addition and subtraction.
This causes many fights as the one child starts a new game at their level, erasing the others saved game and character upgrades.

App Privacy

The developer, Razeware LLC, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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