Supercell
In 2012, Supercell saw earnings of $51 million on $101 million in revenue. Supercell's monster of a year is mostly due to the success of its two games Hay Day and Clash of Clans.
Both Clash of Clans and Hay Day are free to play, but some users may end up paying hundreds of dollars on in-app purchases and upgrades.
Clash of Clans and Hay Day are both among the top-ten grossing apps in the iTunes Store, according to AppData.
Back in October, Clash of Clans' projected revenue estimate was for a single day was $654,000, according to AppData. That same day, Hay Day had a projected revenue estimate of $413,000.
Supercell ultimately aims to reach the caliber of a Nintendo or Pixar, according to a job opening listed on its site, and plans to launch its third title, Beach Boom, in March.