Odnoklassniki is a social networking app that is largely used by people in Russia and in former Soviet countries. The app was created by Albert Popkov and is owned by the Mail.ru Group. As of May 2015, it is available on iTunes.
The networking app has over 200 million daily users and is often in the top 100 Alexa sites for traffic. The site is hosted in Russia, and much of the site's text content is in Russian, but there is support for multiple languages. The app functions in a manner similar to Facebook and focuses on connecting family, old friends and former classmates.