Are you an expert at differentiating colors? Koolor is your game!

Koolor is a very simple and addictive game that consists in identifying which color is different in each game screen and tap the different color tile. It will help you exercise and improve your eyesight!


The level of difficulty increases as the game progresses. The number of tiles will increase and colors will look more and more similar. Squares, hexagons, circles ... the silhouettes will change shape, color and size on each screen.

In addition time runs against you. How many levels will you be able to pass in the proposed time? The faster you can identify the intruder color, the more levels you can complete.

Not suitable for color-blind. This game is aimed at those people who have a great visual acuity and are able to differentiate the different shades of color that exist. Pay close attention, some colors are very similar!


Koolor has different types of colors to play with; from the primary colors to the pastel tones or softer tones. Red, orange, blue, pink, purple, green, yellow.... Discover all the palette of colors that exist.
Whether Pantone, RGB or CYMK, you have to have a graphic designer eye to differentiate them at first sight.

At first it will be easy but you must have a sharp eye to pass the higher levels. Do you usually differentiate the green melon color from the green apple color? Then Koolor is made for you.

A hint: When you can not see the color at first glance, close your eyes a little to better focus the view. This will help you to better differentiate colors and to know what is different.


In Ludei we create simple and addictive games for all ages. If you have any suggestions or comments, write us and we will keep them in mind for future updates. Thank you very much for trusting Ludei!

What’s New

Version 1.0.1

We are very happy to know that you are having fun with Koolor.
In this update we have made some performance improvements and fixed some minor bugs.
Thank you for being there and send your suggestions!

Ratings and Reviews

4.5 out of 5
80 Ratings

80 Ratings

Mifmaster ,

Additive and Challenging!

I love games that start easy and than making it more and more difficult or should I say more challenging. Also, like the idea of improving my score on myself and others. l also, like the fact that when you get stuck that this game helps you out, instead of getting stuck and giving up because you can not continue on other puzzle games. Thanks for giving the not so skilled a chance to succeed, even though it is only a little bit each time you play. Again thanks for the hope of succeeding with the younger generations!

GeekyGirl007 ,

Meh and ads..

I agree with the other reviewer about the ads. I downloaded it on the day it said it was giving away the ad-free version for free but I still get ads.

The game overall is fun but if you don’t give an answer within 10 seconds it will give you the answer and I’d rather find it myself. It takes all the fun out. It also makes the game super boring to start from lvl 1 each time you mess up rather than start from the level you lost on. You’ll quickly tire of playing the same several levels over and over and over again just to get back to the last lvl you played.

I’ll most likely be deleting as for me it got boring quick with the above issues and there are still ads even though I was supposed to get ad free.

CAQueen ,

I can 👀! 👸🏻♿️

LOVE THIS! I am legally blind but I can c color better than most sighted people do. Thx 4 making a game just 4 me! 😍


18.1 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Copyright 2013 Ludei. All rights reserved.
In-App Purchases
  1. Remove ads in the game. $3.99


  • 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.

More By This Developer

You May Also Like