Duolingo

2011-2013


The starting logo. This is the main logo used in the start.



2011-2013 (App)
This was what the Duolingo App also looked like.

2013-Present


The current redesigned logo. The logo is now a flattened version from the previous and has been turned into 2D.



Also the redesigned App logo. Again, 2D and flattened from the previous.