+ & - : A Zen game of skill and logic for iOS

By Marco Locatelli Free

Developer's Description

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 added2) different numbers on background of different color are subtractedTap 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- during a game in the background you can listen to your favorite music, previously selected from your music library.

Full Specifications

What's new in version 2.0

Removed the advertising replaced with an IN-APP purchase of the new feature 'Change the Number'


Release June 12, 2016
Date Added June 12, 2016
Version 2.0

Operating Systems

Operating Systems iOS
Additional Requirements Compatible with: ipad2wifi, ipad2wifi, ipad2wifi, ipad2wifi, ipad23g, ipad23g, ipad23g, ipad23g, iphone4s, iphone4s, iphone4s, iphone4s, ipadthirdgen, ipadthirdgen, ipadthirdgen, ipadthirdgen, ipadthirdgen4g, ipadthirdgen4g, ipadthirdgen4g, ipadthirdgen4g, iphone5, iphone5, iphone5, iphone5, ipodtouchfifthgen, ipodtouchfifthgen, ipodtouchfifthgen, ipodtouchfifthgen, ipadfourthgen, ipadfourthgen, ipadfourthgen, ipadfourthgen, ipadfourthgen4g, ipadfourthgen4g, ipadfourthgen4g, ipadfourthgen4g, ipadmini, ipadmini, ipadmini, ipadmini, ipadmini4g, ipadmini4g, ipadmini4g, ipadmini4g


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