Duolingo, Inc. (DUOL) CEO Luis von Ahn on Q4 2021 Results - Earnings Call TranscriptSeeking Alpha • 03/04/22
Earnings Results: Duolingo stock surges after results, outlook top Street viewMarket Watch • 03/03/22
Duolingo to Announce Fourth Quarter and Full Year 2021 Results on Thursday, March 3, 2022GlobeNewsWire • 02/03/22
Leading Language Research Journal Publishes Study Showing Duolingo Learning Outcomes Are Comparable to University ClassesGlobeNewsWire • 01/12/22
Duolingo: Significant Amount Of Cash, And Growing At The Double Digit Sales GrowthSeeking Alpha • 12/18/21
Duolingo Reveals the “Most 2021 Phrase” and Launches Second Global Language ReportGlobeNewsWire • 12/06/21