I am changing my review from 5 stars to 1 because suddenly on Feb 27 I had to start watching ads again to get hints. On Jan 31 I paid 4.99 plus tax for no ads/unlimited hints. I tried contacting someone through the setting in the app to do this but am still waiting for an answer. UPDATE -- just updated the app but problem still exists. Still waiting for this to be resolved. Problem has been resolved -- changing review back to 5 stars. This really is a great app, very relaxing and lots of fun.