EX-32.1 5 duolingo-2025q210xqex321.htm EX-32.1
Exhibit 32.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Quarterly Report on Form 10-Q of Duolingo, Inc. (the “Company”) for the quarter ended June 30, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Luis von Ahn, President and Chief Executive Officer of the Company, and Matthew Skaruppa, Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

| 1. | The Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

| 2. | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 6, 2025 |  |  | /s/ Luis von Ahn
|  |  | Luis von Ahn
|  |  | President and Chief Executive Officer (Principal Executive Officer)
Date: August 6, 2025 |  |  | /s/ Matthew Skaruppa
|  |  | Matthew Skaruppa
|  |  | Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)