Edit: Used to be a five star app, but removing the ability to post on sentence discussions easily made it worthless. The discussions provided a lot of useful contextual and grammatical tips that the actual devs of the app failed to successfully implement. Now you'll just spend your time confused instead of enlightened. Still useful for those with years of learning under their belts, but I no longer recommend this app for a beginner. RIP the forums and communication. So much for language, huh?