Kind of fun. It sometimes gives questions before ever teaching new words. It has you speak sentences but the recording is very off, punishing you even though you are right. It gets hard understanding the text to speech used in this app which can easily make you lose. The basic artwork and minimal interface looks nice. The game system which the whole app is based around is more annoying than fun since it makes you wait, pay or practice to try advancing.
rt146 about Duolingo Learn Many Languages for Free, v5.0.15