Emil Protalinski, writing for VentureBeat:
Duolingo, the popular crowdsourced text translation tool, today announced that it has closed a $45 million round led by Google Capital at a valuation of $470 million. Previous investors Union Square Ventures, New Enterprise Associates, and Kleiner Perkins Caufield & Byers also joined in this new round.
This figure more than doubles the $38.3 million Duolingo has raised so far: a $3.3 Series A round led by Union Square Ventured in October 2011, a $15 million Series B round led by NEA in September 2012, and a $20 million Series C round led by Kleiner Perkins Caufield & Byers in February 2014. Other notable investors include actor Ashton Kutcher and author Tim Ferris.
They also announced that they now have over 100M users. As one of those 100M, I'm really pleased with the platform and the strides they've made to improve it over the years. My only complaint with it is that it hasn't completely broken my ability to be lazy as hell and not continually practice and strengthen my language learning. I might be projecting.
Interesting that Google led a huge chunk in this latest round of funding. I wonder if they'll resort to gobbling Duolingo up and use the data it collects from its users to boost its own translation tech.