I don't know what has happened to ScrabbleGo but it's disappointing. You have to use gems to exchange letters now. If you play the last tile, all remaining letters of your opponent goes to the opponent now. There are ads after EVERY play. The bots cheat so much that they win every round and it's nearly impossible to beat them now. You are better off playing with real players. I used to love this game but now I hardly ever play it. I'm pretty sure I'll uninstall it eventually.