Mobile device applications for casinos

A gaming system comprising one or more servers and one or more wagering game machines in a casino, the gaming system configured to perform the operations of:

• detecting, by the one or more servers, that a mobile device of a player is within a casino;
• associating, by the one or more servers, a first player account with a second player account, the first player account including a player identifier identifying the player and a mobile device identifier identifying the mobile device of the player, the second player account including the player identifier, wherein the associating operation includes comparing the player identifier in the first player account with the player identifier in the second player account;
• generating, by the one or more servers, an offer to perform activity at one or more wagering game machines in the casino, the offer being presented on the mobile device;
• detecting, by the one or more servers, that the one or more wagering game machines are accessed using the second player account, the detecting including detecting the mobile device at the one or more wagering game machines;
• detecting, by the one or more servers, performance of the activity via the one or more wagering game machines and tracking, by the one or more servers, the performance in the second player account at least one of the one or more wagering game machines being an electromechanical machine configured to play mechanical slots, each wagering game machine including a value input device and a payout mechanism, the value input device configured to accept a physical item associated with monetary value to establish a credit balance from which wagers are drawn, the payout mechanism configured to dispense a payout from the credit balance;
• and
• communicating, by the one or more servers, information about the activity to the first player account.