Zero‪+‬ 4+

SaturnBoy, LLC

Designed for iPad

    • 4.8 • 175 Ratings
    • Free



A simple iOS puzzle game that is devilishly fun to play. Just add positive and negative numbered blocks to one another to make all zeros.

• Easy to play: swipe blocks left, right, up, or down
• Lots to do: 120 levels and counting...
• Never the same: new levels bring new kinds of blocks

What’s New

Version 1.1

This app has been updated by Apple to display the Apple Watch app icon.

• added 18 new levels for a total of 120
• updated some beginning levels to make them easier
• bug fixes

Ratings and Reviews

4.8 out of 5
175 Ratings

175 Ratings

sandman1318 ,

Awesome after all!

I want the revise my rating back to five stars! As it turned out, the few things I complained about were not a big deal. Yes, in more than one game the total of the negative squares were not equal to the number of positive squares. But what I didn't realize was that once you completely clear the board of, say the negative squares, you get the "winner" screen even though one or more of the blue positive squares remain. The other complaint I had was that the game often "grayed out" which prevented me from going any further. But I discovered this only happens when I hit the "back arrow" to try again but don't give the game adequate time to reset. Instead, I would IMMEDIATELY try making a new move which turned out to be the problem. This has to be one of the most fun games I've ever played and the hope to see additional levels real soon. I'm not a big game player so coming from me that's really good! 😎

paulinstl ,

Maddening Fun!

What a wonderful game--clever design, takes one easily through the basics, then gets progressively more difficult.
I found myself infuriated to get down to a -1 that was totally unable to “Zero" the remaing 1. Sometimes I had to quit & return later in a better frame of mind. It is immensely satisfying to finally complete a puzzle and move on to the next. More, please! PaulB

Jeanietwo ,


The game is interesting. I love puzzle games like 2048 and merged which is why I downloaded this one but it seemed a little less functional than the others. My app would glitch and not allow me to play every once in a while by sliding the tiles so I would have to kill the app and then relaunch it in order to be able to play the level. Also the app doesn't allow me to play my music in the background while playing which I thought was kind of annoying.

App Privacy

The developer, SaturnBoy, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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