Abstract: Exemplary methods, apparatuses, and systems include a first server transmitting, to a first client device, a scannable code for display on the first client device. The scannable code encodes a session identifier for a session between the first client device and the first server. The first server receives a transaction identifier to authenticate a transaction within the session between the first client device and the first server. The transaction identifier is transmitted to the first server in response to a second client device scanning and decoding the scannable code displayed on the first client device to obtain the session identifier. The first server transmits an indication of a successful authentication to the first client device in response to the received transaction identifier.

Abstract: Embodiments of the invention include systems, computer program products and computer implemented methods for allowing users to purchase one or more products from a merchant. Such embodiments may comprise a mobile device associated with a user, where the mobile device includes a memory having computer instructions that execute the steps of prompting the user to scan the code using the mobile device; translating the code to determine at least a product price and merchant identifier; creating a product purchase prompt on a display associated with the mobile device, and transmitting the product, product price and merchant identifier to a processing server to thereby facilitate an approval of a transaction between the user and the merchant.