EMPLOYEE BENEFIT PLAN	6 Months Ended
Jun. 30, 2021
Postemployment Benefits [Abstract]
EMPLOYEE BENEFIT PLAN	EMPLOYEE BENEFIT PLANThe Company sponsors a profit sharing plan with a 401(k) feature, the Duolingo Retirement Plan, (the “Plan”) for eligible employees. The current Plan, effective January 1, 2021, provides for Company safe harbor matching contributions of 100% of the first 4% of the employees’ elective deferrals and 50% of the next 2%, with vesting starting upon the first day of employment. The prior year Plan provided for Company safe harbor matching contributions of 100% of the first 3% of the employees’ elective deferrals and 50% of the next 2%, with vesting starting upon the first day of employment. The Company also has the option to make discretionary matching or profit sharing contributions. The Company made safe harbor matching contributions of approximately $781 and $1,483 for the three and six months ended June 30, 2021, respectively and $472 and $813 for the three and six months ended June 30, 2020, respectively. The Company did not make any discretionary matching or profit sharing contributions during the six months ended June 30, 2021 or 2020.

EMPLOYEE BENEFIT PLAN

6 Months Ended

Jun. 30, 2021

EMPLOYEE BENEFIT PLANThe Company sponsors a profit sharing plan with a 401(k) feature, the Duolingo Retirement Plan, (the “Plan”) for eligible employees. The current Plan, effective January 1, 2021, provides for Company safe harbor matching contributions of 100% of the first 4% of the employees’ elective deferrals and 50% of the next 2%, with vesting starting upon the first day of employment. The prior year Plan provided for Company safe harbor matching contributions of 100% of the first 3% of the employees’ elective deferrals and 50% of the next 2%, with vesting starting upon the first day of employment. The Company also has the option to make discretionary matching or profit sharing contributions. The Company made safe harbor matching contributions of approximately $781 and $1,483 for the three and six months ended June 30, 2021, respectively and $472 and $813 for the three and six months ended June 30, 2020, respectively. The Company did not make any discretionary matching or profit sharing contributions during the six months ended June 30, 2021 or 2020.