Are you tired of the usual games where you just slide your finger across the screen at random to make a decent score ?
With +&- you'll have to use your head to do something good.
The rules are two:
1) equal numbers on background of equal color are added
2) different numbers on background of different color are subtracted

Tap two numbers, the result will take the place of the second.
Make the highest score you can.

- you can save the current game and start a new one, so that you can play up to 9 games at the same time.
- when you exceed 500 points, you'll be able to swap the colors of two quartets dragging the one over the other.
- customize the colors of the board with 351 different combinations
- you can also change the user interface color, light or dark

What’s New

Version 2.2

• adapted the graphics to the iPhone X...
• changed the APP icon

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

Imaxuncut ,

Great App

The object of this game is to get a high score. Your working on a 16 square grid that contains two colors. Sounds simple right. You achieve this goal by adding and subtracting numbers. However, there are rules that govern how this math can be done. To add, both numbers must be the same and come from the same color. To subtract, the numbers must be different and come from different colors. You'll find that you' ll often make a mistake and when you do, another number will be added to the grid. Once the grid fills up, it's game over. Going for the highest score possible isn't easy. Part of the problem is that there is no Save Game Feature. So you must achieve your best score all in one sitting. If they add this feature, this will be one of the best apps you can get, hands down.

App Privacy

The developer, Marco Locatelli, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

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


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

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

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