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REVENUE (Tables) | 12 Months Ended
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Dec. 31, 2024
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue |
|  |  | Year Ended December 31,
(In thousands) |  |  |  |  | 2024 |  | 2023 |  | 2022
Revenues: |  |  |  |  |  |  |  |  |
Subscription |  |  |  |  | $ | 607,531 |  |  | $ | 404,684 |  |  | $ | 273,507 |
Other (1) |  |  |  |  | 140,493 |  |  | 126,425 |  |  | 95,988 |
Total revenues |  |  |  |  | $ | 748,024 |  |  | $ | 531,109 |  |  | $ | 369,495 |
________________ (1) Other revenue is comprised of the below.
|  |  | Year Ended December 31, |
(In thousands) |  |  |  |  | 2024 |  | 2023 | 2022 |
Advertising |  |  |  |  | $ | 54,907 |  |  | $ | 49,858 |  | $ | 44,731 |  |
Duolingo English Test |  |  |  |  | 45,640 |  |  | 41,212 |  | 32,718 |  |
In-App Purchases |  |  |  |  | 38,653 |  |  | 34,673 |  | 17,914 |  |
Other |  |  |  |  | 1,293 |  |  | 682 |  | 625 |  |
Total other revenue |  |  |  |  | $ | 140,493 |  |  | $ | 126,425 |  | $ | 95,988 |  |
Schedule of Revenue by Geographic Areas | Information regarding geography of revenues is based upon the location where the users are located or, in the case of the Duolingo English Test, where the tests are taken:
| Year Ended December 31,
| 2024 |  | 2023 |  | 2022
United States | $ | 311,539 |  |  | $ | 238,759 |  |  | $ | 168,320 |
Rest of World | 436,485 |  |  | 292,350 |  |  | 201,175 |
Total | $ | 748,024 |  |  | $ | 531,109 |  |  | $ | 369,495 |
Schedule of Deferred Revenues | Changes in deferred revenues were as follows:
| Year Ended December 31,
(In thousands) | 2024 |  | 2023
Beginning balance—January 1 | $ | 249,192 |  |  | $ | 157,550 |
Amount from beginning balance recognized into revenue | (248,667) |  |  | (157,550) |
Recognition of deferred revenue | (402,937) |  |  | (287,429) |
Deferral of revenue | 775,296 |  |  | 536,621 |
Ending balance—December 31 | $ | 372,884 |  |  | $ | 249,192 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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