King reported that in the year since the release of Candy Crush Saga has gained 500 million installations. The number of sessions played exceeded 150 billion.
The main success factors the company called the availability of the project on numerous devices, the social aspect and monetization.
“At King, we made the following decision: the game can be played from beginning to end (without paying) without blocking progress. It all depends on the balance between generosity and creating an incentive to make an IAP,” said company representative Tommy Palm
The project was launched on Facebook in April 2012, it appeared on mobile devices in November last year.
A source: gamesindustry.biz