Abstract: Methods, systems, and devices are disclosed for conducting offline transactions using mobile devices at a point of sale device while the point of sale device is disconnected from a network. The point of sale device may receive a request from a user for a transaction code associated with a transaction between the mobile device and a point of sale device; generate an offline transaction code based on a current offline transaction code key stored at the mobile device and a time code associated with the transaction in response to a determination that the mobile device is disconnected from a payment authority server; provide the generated offline transaction code from the mobile device to the point of sale device; and receive an indication from the point of sale device that the payment authority server has approved the transaction based on the generated offline transaction code.

Abstract: Methods, systems, and devices are disclosed for conducting offline transactions using mobile devices at a point of sale device while the point of sale device is disconnected from a network. The point of sale device may receive a mobile transaction code from a mobile device, the mobile transaction code associated with an offline transaction between the mobile device and the point of sale device.

Abstract: Methods and systems for sending marketing messages to mobile-device users from a mobile-commerce platform are described. In various illustrative embodiments, a marketing message is transmitted to a mobile-device user before, during, or after a transaction between the mobile-device user's mobile device and the mobile-commerce platform. The marketing message can be generated and timed based on rules input to the mobile-commerce platform by a merchant and can be based on historical transaction data associated with the mobile-device user, transaction parameters associated with a current or a most-recently-completed transaction involving the mobile-device user, a transaction type of a current or a most-recently-completed transaction involving the mobile-device user, or a combination thereof, depending on the particular embodiment.

Abstract: A method and system for routing transactions to a mobile-commerce platform is described.