As of February 2015, "Candy Crush" has about 8,254,000 daily players. There are almost 100,000 new installations of the game each day, and the estimated daily revenue is close to a million dollars.
The 2014 follow-up to the game, "Candy Crush Soda Saga", currently has a little over 5 million daily players and about 144,000 new daily installs. It is estimated to make about $397,000 per day.
Candy Crush's statistics are actually significantly down from its peak period in late 2013 and early 2014. In its IPO filing, the game's publisher revealed that in December of 2013, the game had an average of 93 million active daily players.