EX-5.1

Exhibit 5.1

Wilson Sonsini Goodrich & Rosati

Professional Corporation

650 Page Mill Road

Palo Alto, CA 94304-1050

O: 650.493.9300

F: 650.493.6811

December 3, 2021

AppLovin Corporation

1100 Page Mill Road

Palo Alto, CA 94304

Re:

Registration Statement on Form S-1

Ladies and Gentlemen:

This opinion is furnished to you in connection with the Registration Statement on Form S-1, as amended (the “Registration Statement”), filed by AppLovin Corporation (the “Company”) with the Securities and Exchange Commission pursuant to Rule 462(b) of the Securities Act of 1933, as amended (the “Securities Act”), in connection with the registration under the Securities Act of 1,150,000 shares of the Company’s Class A common stock, $0.00003 par value per share (the “Shares”), to be sold by KKR Denali Holdings L.P. (the “Selling Stockholder”) (including up to 150,000 shares issuable upon exercise of an option granted to the underwriters by the Selling Stockholder). The Registration Statement incorporates by reference the Registration Statement on Form S-1 (Registration No. 333-261377), as amended (the “Prior Registration Statement”), which was declared effective on December 3, 2021, including the prospectus which forms part of the Prior Registration Statement. We understand that the Shares are to be sold to the underwriters for resale to the public as described in the Registration Statement and the Prior Registration Statement and pursuant to an underwriting agreement, substantially in the form filed as an exhibit to the Prior Registration Statement, to be entered into by and among the Company, the Selling Stockholder, the other selling stockholders identified in the Prior Registration Statement and the underwriters (the “Underwriting Agreement”).

We are acting as counsel for the Company in connection with the sale of the Shares by the Selling Stockholder. In such capacity, we have examined originals or copies, certified or otherwise identified to our satisfaction, of such documents, corporate records, certificates of public officials and other instruments as we have deemed necessary for the purposes of rendering this opinion. In our examination, we have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals, the conformity with the originals of all documents submitted to us as copies, the authenticity of the originals of such documents and the legal competence of all signatories to such documents.

We express no opinion herein as to the laws of any state or jurisdiction other than the General Corporation Law of the State of Delaware (including the statutory provisions and all applicable judicial decisions interpreting those laws) and the federal laws of the United States of America.

On the basis of the foregoing, we are of the opinion that the Shares to be sold by the Selling Stockholder have been duly authorized and are validly issued, fully paid and nonassessable.

We consent to the use of this opinion as an exhibit to the Registration Statement, and we consent to the reference of our name under the caption “Legal Matters” in the prospectus forming part of the Prior Registration Statement, which is incorporated by reference into the Registration Statement.

AUSTIN BEIJING BOSTON BRUSSELS HONG KONG LONDON LOS ANGELES NEW YORK PALO ALTO

SAN DIEGO SAN FRANCISCO SEATTLE SHANGHAI WASHINGTON, DC WILMINGTON, DE