Did like this app at first. Then so many ads. Maybe after every 5TH picture but an ad after EVERY picture is ridiculous! THEN I sometimes have a color that is not used up so I enlarge the picture to try & find the space not colored in. GO OVER IT WITH A FINE TOOTH COMB.STILL can not find it. I go as far as getting a ruler & still can not find it. So I am FORCED to use hints. Only to find out the VERY FIRST space I scored in was all.of a sudden blank AGAIN! Deleting app & NOT REINSTALLING-EVER