REVENUE (Tables)

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Revenue Sources and Streams


			Three Months Ended September 30,												Nine Months Ended September 30,
(In thousands)			2023						2022						2023						2022
Revenues:
Subscription			$	105,887					$	72,172					$	287,230					$	195,376
Advertising			11,678						10,619						36,374						33,585
Duolingo English Test			10,612						8,192						30,393						24,308
Other (1)			9,447						5,082						26,127						12,402
Total revenues			$	137,624					$	96,065					$	380,124					$	265,671

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(1) Other revenue is mainly comprised of in-app purchases of virtual goods.

Schedule of Deferred Revenues

Changes in deferred revenues were as follows:


			Nine Months Ended September 30,
(In thousands)			2023						2022
Beginning balance—January 1			$	157,550					$	98,267
Amount from beginning balance recognized into revenue			(143,810)						(89,387)
Recognition of deferred revenue			(173,408)						(122,527)
Deferral of revenue			368,556						248,591
Ending balance—September 30			$	208,888					$	134,944