Question: What freemium mobile strategy video game released on the iOS platforms on August 2, 2012 generated revenue of $2.4 million a day in 2013 when paired with the game Hay Day?
Context: Hay Day is a freemium mobile farming game developed and published by Supercell.  Hay Day was released for iOS on June 21, 2012 and Android on November 20, 2013.  According to a 2013 report, Supercell earned $30 million a month from Hay Day and Clash of Clans, another game made by Supercell.  In 2013, Hay Day was the 4th highest game in revenue generated. Mobile Strike is a freemium mobile massively multiplayer online strategy video game developed and published in 2015 by Machine Zone (now known as MZ).  The game had a high-profile advertising campaign and became one of the top-grossing apps in 2015 and 2016. Bazoo is a freemium mobile strategy video game developed and published by the French studio IsCool Entertainment.  The game combines a traditional puzzle gameplay and worldwide real-time player versus player fights.  The game was released globally on April 10, 2017. Dungeon Keeper is a freemium mobile massively multiplayer online strategy video game developed by Mythic Entertainment and released by Electronic Arts in 2014 for iOS and Android.  A reboot to the "Dungeon Keeper" series, players construct and manage a dungeon, recruiting minions to run it, although the gameplay has a tower defence style, featuring frequent raids of others' dungeons and the defence of the player's.  Players can participate in tournaments and leagues online. Supercell is a mobile game development company founded in June 2010 in Helsinki, Finland.  The company's debut game was the browser game "Gunshine.net", and after its release in 2011, Supercell started developing games for mobile devices.  Since then, the company has fully released four mobile games: "Hay Day", "Clash of Clans", "Boom Beach", and "Clash Royale", which are freemium games and have been very successful for the company, the first two generating revenue of $2.4 million a day in 2013. The Simpsons: Tapped Out is a freemium mobile game for iOS and Android, based on the American animated series "The Simpsons".  It allows users to create and maintain their own version of Springfield using familiar characters and buildings.  The game is constantly being updated with new, often season-specific content, for example during holidays like Thanksgiving, and "Treehouse of Horror" episodes-related content for Halloween.  Not limited to English-speaking players, the game is available in many languages such as French, Turkish, Italian, German, Simplified Chinese, Peninsular Spanish and both European Portuguese and Brazilian Portuguese.  The game was developed and published by EA Mobile and launched in Europe on February 29, 2012 and in North America on March 1, 2012 for iOS and February 6, 2013 for Android.  The game was released for Kindle Fire devices in several markets on June 24, 2013.  According to its own estimates, EA generated over $130 million in revenue since the game's release.  For BlackBerry 10, the Android version of the game can be downloaded via Amazon Appstore. Brawl Stars is a freemium mobile real-time strategy video game developed and published by Supercell.  On June 14, 2017, Supercell announced the game via livestream video on Youtube.  It received an iOS soft launch in the Canadian App Store the following day, June 15, 2017.  It is yet to be released on Android devices or in other countries. Game of War: Fire Age is a freemium mobile massively multiplayer online strategy video game developed and published in 2013 by Machine Zone (now known as MZ).  The game had a high-profile advertising campaign and was one of the top-grossing apps in 2014 and 2015. Plunder Pirates is a freemium mobile MMO pirate-themed strategy video game, inspired by Clash of Clans, developed and published by Midoki.  For iOS, it soft-launched in Canada and Finland on June 16, 2014 and the worldwide iOS release was on September 17, 2014.  The game was one of the first to use Metal for advanced graphics in iOS 8.  The Android version was released on April 22, 2015.  It was originally published by Rovio Stars. Clash of Clans is a freemium mobile strategy video game developed and published by Finnish game developer Supercell.  The game was released for iOS platforms on August 2, 2012, and on Google Play for Android on October 7, 2013.
Answer: Clash of Clans