Love this game but latest update confusing – Word Doodle Review

Been really having fun with this. It had lots of advertising but I didn't mind as it gave you free hints. The last update however messed everything up. The free hints are gone. Instead it requires you to buy coins. But no explanation as to how to use the coins. I'm hoping it's going to get put back to the way it was, otherwise I will have to find a new game. All the constant ads, PLUS having to buy coins for hints is a rip off!
Review by photodenver on Word Doodle.