Slotomania does not require payment to download and play, but it also allows you to purchase virtual items with real money inside the game. You can disable in-app purchases in your device's settings. Slotomania may also contain advertising.
Taskforce 141 is the name of a multinational special forces group under the command of Lt. Gen. Shepherd. It's recruits come from multiple special forces units around the world including the S.A.S, 75th Ranger Regiment and Canadian Special Operations Regiment.