Bests & Worsts Reviews from Amazon

I got this app a while ago and spent however long making enough pottery through the game to buy all of the materials, colors and brushes. It was fun at the time but I haven't played in a while. I noticed there was an update and I hit update without reading the notes about it. while it was downloading I glanced at the notes and saw that now this app is using real money? I thought that was weird but maybe that means there are new materials to play with. I opened the app when the update was done and found all of the materials I previously purchased throughout the course of the original game play GONE. What the heck?? Now I have to do ALL of that work all over again AND pay real money for lame materials I had already obtained?? Forget that! Honestly, I don't know how the real money comes into play but after finding out that everything I did before was wiped out I don't even want to play long enough to see if its even worth my time. So very disappointed with this app.