+ & - : A Zen game is made and published by Marco Locatelli. AppBrain is an independent app data site and isn't affiliated with Marco Locatelli. The app name, icon, screenshots and description belong to Marco Locatelli and are shown as published on the App Store.

About + & - : A Zen game

+ & - : A Zen game is a games app developed by Marco Locatelli.

User Ratings

+ & - : A Zen game is rated 5.00 out of 5 stars. The rating is based on 2 ratings.

App Information

+ & - : A Zen game is freely available from the App Store. The app size is 3.97 MB. The latest version available is 2.3.2. The last update was on January 7, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since June 2014.

Description by Marco Locatelli (from the App Store)

This is a special game, a bit Zen a bit strategic, take your time but not too much.

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 numbers of two quartets of different color, dragging 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

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Screenshots

Screenshots by Marco Locatelli, from the the App Store listing

5.00 · 2 reviews

Official page on the App Store

Alternatives to + & - : A Zen game

Changelog of + & - : A Zen game

No changelog data

Developer information for Marco Locatelli

Marco Locatelli

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+ & - : A Zen game