I never write reviews. Ever. Too lazy, dont care. till now. Im one voice in 11mil, but I WILL STILL feel the need to complain about the fricking lives system. Not even anything else. Its discouraging to the point that I dont use the app for days because I will just make too many mistakes to progress at all, and then I have to wait it off. And I know its there for money making, and Idc. Im not paying $10 for russian, the whole point of duo is free learning. this is bull, apparently.