Yandex Introduces Search App for the iPhone

Moscow, December 15, 2011. Yandex (NASDAQ: YNDX) has introduced a search app for the iPhone, downloadable for free from the Apple App Store. The Yandex for iPhone app offers iPhone users the fastest and easiest access to Yandex’s search engine, as well as the access to other websites and Yandex services.

“Yandex continues to expand its range of mobile apps. The Yandex for iPhone application was developed from a prototype that won our in-house mobile product competition. Initially, it was a simple search app that the end user could customize to meet their personal needs,” says Konstantin Smetankin, Project Manager. “Then, we took the idea to another level and developed Yandex for iPhone, an app we really wanted to use.”

The user can enter either a search query or a website address into the app’s search bar – the app will know what the user is looking for and will then either offer a page with search results or take the user directly to the destination website.

The Yandex for iPhone app is also handy when it comes to quickly finding weather updates or currency exchange information. To provide users with fast and easy access to their favourite websites, the app features customizable bookmarks.

Yandex’s previously launched apps for the iPhone include Maps, Mail, Metro, Trains, Money, Market and Taxi.

About Yandex

Yandex (NASDAQ: YNDX) is the leading internet company in Russia, operating the country’s most popular search engine and most visited website. Yandex also operates in Ukraine, Kazakhstan, Belarus and Turkey. Yandex’s mission is to answer any question internet users may have.

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements that involve risks and uncertainties. These include statements regarding the development of Yandex’s mobile applications. Actual results may differ materially from the results predicted or implied by such statements, and our reported results should not be considered as an indication of future performance. The potential risks and uncertainties that could cause actual results to differ from the results predicted or implied by such statements include, among others, user preferences, competitive pressures, changes in the legal and regulatory environment, and technological developments, as well as those risks and uncertainties included under the captions “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Prospectus dated May 24, 2011, which is on file with the Securities and Exchange Commission and is available on our investor relations website athttp://company.yandex.com/investor_relations/sec_filing.xmland on the SEC website atwww.sec.gov. All information provided in this release is as of the date hereof, and Yandex undertakes no duty to update this information unless required by law.

Contact:
Media Relations
Vladimir Isaev, Ochir Mandzhikov
Phone: +7 495 739-7000
E-mail: pr@yandex-team.com