Identifying a same user of multiple communication devices based on user locations

A system for identifying a same user of multiple communication devices, the system comprising one or more computers having computer readable media having stored thereon instructions which, when executed by one or more processors of the one or more computers, causes the system to perform the steps of:

• (a) receiving at least three times within a week first data corresponding to (i) a location of a first communication device operated by a user on a weekday and (ii) a purchase of a type of item with the first communication device at the location;
• (b) receiving second data corresponding to (i) a location of a second communication device operated by a user on a weekend and (ii) a purchase of the same type of item with the second communication device at the location, wherein the location of the first and second devices is the same;
• (c) determining that the user of the first communication device is the user of the second communication device based on the received first and second data indicating that the first communication device purchased the same type of item in the same location as the second communication device;
• and
• (d) creating a universal profile for the user containing data corresponding to the first and second communication devices, wherein the universal profile includes data that identifies the first and second communication devices as being operated by the user.