Rosetta Stone is Duolingo's #1 rival. Rosetta Stone was founded in 1992 in Arlington, Virginia. Like Duolingo, Rosetta Stone also operates in the E-Learning space. Rosetta Stone generates $17.3M less revenue than Duolingo.

Babbel is one of Duolingo's top competitors. Babbel is headquartered in Berlin, Berlin, and was founded in 2007. Like Duolingo, Babbel also works within the E-Learning sector. Babbel generates 65% the revenue of Duolingo.

Memrise is seen as one of Duolingo's top competitors. Memrise was founded in 2010, and its headquarters is in London, England. Like Duolingo, Memrise also works within the E-Learning sector. Memrise has 275 fewer employees than Duolingo.