Too bad, that some people out there are too stupid to read and too stupid to use this website.
i think the author created a nice little app which is quite useful if you wanna learn a new language or continue practicing one.
the app is free and evolving with each new release. for sure, there are some drawbacks, but it is definitely better than a one-star app.
i think it would be nice if there were some kind of miss-typing catch (i think that's everything but good english, but i still have to practice :p and don't know the correct word)