Facilitating cross-platform content access

A method comprising:

• sending, from a first mobile computing device, a request to access a content item within a first instance of a software application executing in conjunction with a first operating system on the first mobile computing device, the request comprising:
• a content item identifier (ID) identifying the content item;
• a mobile application ID identifying the software application;
• an account ID identifying a user of the first mobile computing device, the account ID associated with an account index entry comprising an application event identifying that the user accessed the content item made available within a second instance of the software application running on a second mobile computing device;
• receiving, from a server, a content item address specifying where the content item can be directly accessed within any instance of the software application operating on a mobile computing device that also uses the first operating system, the content item address stored in a correlation index entry of a correlation index responsive to a user associated with a different account ID accessing the content item made available within a third instance of the software application executing in conjunction with the first operating system on a third mobile computing device;
• accessing the content item made available within the first instance of the software application running on the first mobile computing device.