I Studied French For 405 Days with Duolingo
I have been studying French for more than a year now with a simple application called Duolingo for free! As a result from 0 knowledge I was able with just a few minutes a day to learn to a level where I can communicate with locals, have simple conversations and even some laughs.
How a free application got 300 million users and generates $80 million in revenue? Who is behind it? Learn more in this video.
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