I’m always on the look-out for new programs, tools, and mobile applications for studying Japanese. Though I already use an app similar to Duolingo, called Memrize, this looks like it’s in the same vein as the one I already use. But my philosophy to learning languages is, and especially if you are self-learning, you can never have only one app or tool at your disposal. More tools are always better than one because all these tools differ and depending on what your goal to learning the language is, not any one tool is “one size fits all”. My thought is that you should try out different tools and see which one is right for you.
Duolingo, a freemium (offers a free trial after that it’s a subscription service) language-learning platform/smartphone application offers seventy languages and is now offering Japanese after the app’s 5.1.0 update.