5 stars: I like it because of the animated professor. The ads are nice to watch. I'm at 1400 and the ads have started looping with no
5 stars: Great game for combinational logic. At higher levels the colors used were misleading as one of the colors looked almost identical to the background color. That has since been corrected in the latest version. I especially like the fact that it is not timed, so very relaxing and addictive. The time taken up by adverts is reasonable... hey, the developer has to make some money too!
4 stars: I am addicted to this game. The adds that are in the game are super short which is nice. However when I reached level 85 I was unable to complete the level because there were not enough colors. I could not finish pouring some of the colors and now I can't move on in the game. This really sucks and I hope this can be fixed soon so I can continue playing this game.
4 stars: I like the strategic thinking required in this game and there seem to be fewer ads lately. Unfortunately, level 3751 can't be completed because one of the tubes is missing its top colour and won't animate.
3 stars: There used to be ads after every couple levels, now there are ads after every single one, and when you leave the app and come back in, even only for a second. I am over 250 levels in and now I want to stop playing, and I have a friend who is literally over 3k levels in and stopped because of this. Obviously it's a fun game but the ads got too much. They sho...