I tried not to give up on this app because it was fun in the beginning, but the game tries to force you to pay to play so hard that scaling becomes impossible unless you pay. I've even spent my gems earned freely on gear, and still I've been stuck at stage 9 for 4 days now. The game has a goal to get to level 25 for newbies but that's impossible if you play for free. I hate money grabs though, and forcing players to pay especially when you have ads is ridiculous.