It got stuck
I liked the game, got to only third puzzle and it would not accept one piece of the puzzle. I went back the next day, still wouldn’t allow me to finish the puzzle so I could not move on.
Not enough ratings yet to assess Sticker Book.
Sticker Book: Coloring Puzzle appears legitimate, with a few gaps. AppsHunter Legitimacy Score for Sticker Book is 75/100.
Based on 75 of 100 points across 7 verification signals from App Store and developer data.