Ok so far....

Well I dont like that you only get 3 free pics to color at all! Basically if you want to use the app you have to pay the $5 for it. I do like that you have a lot of color choices. They had me rate the app to unlock colors before I really started to color so dont know how the app responds with that yet. If its really bad I will come back and add new comments. If I dont then it was ok and offered more than just child tap and color.
UPDATE- actually raised to 4 stars and really like the app. A lot of colors to choose from and after rating app all colors unlocked includeing making my own colors. After sharing a pic I was pleasantly surprised that more pics were unlocked for free. The coloring and erase features are easy to use and enjoy very much!

Zggrl about Colour Therapy: An Adult Colouring Book