Used to find this addictive and previously gave it 5 stars but lately the ads are larger than the screen size therefore the only way to close the ad is to close the game and start again. If its an ad for a game it's OK but if its an ad for something like credit karma (constantly coming up) then you have to close the whole thing and start again. Update - followed guidance and cleared cache. Now game won't open at all as it "has a bug"