Best free language app ever, however I have one suggestion

Honestly this is the best free app to learn a new language. However, I have a suggestion. I came across Duolingo trying to see if I could learn Japanese, but when I scrolled through the list of languages, there were some common ones as well as some very unknown languages. This kind of discouraged me, but I did not want to let go of the app without trying something first. Ive been doing Spanish for a while, but I realized that it does not get me as excited as learning Japanese does. I downloaded some additional free apps strictly focused on Japanese. The good news about these apps is that had 5 star ratings and good reviews all around and I learned every single lesson every single one had to offer in 4 days. The downside to these apps was that the developers did not update some of them to the point where new lessons were added to further challenge/entertain users. Please dont be one of those apps. So I was hoping that Duolingo could add the languages that are spoken the most in todays society and the ones mentioned in areas tourists visit the most in order for everyone to familiarize themselves with the languages of their areas first before adding languages that are rarely mentioned.

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