Client device application interaction monitoring

A system to monitor interactions with content associated with uniform resource identifiers (URIs) accessed via client applications, the system comprising:

• a data processing system including a memory storing computer code instructions therein and one or more processors to execute the computer code instructions, the computer code instructions when executed by the one or more processors cause the data processing system to:
• assign a click identifier (ID) to a first URI by appending the click ID to the first URI to create a second URI responsive to the receipt of an indication of a first interaction with the first URI by a web browser of the client device, the second URI including the click ID,
• (i) the first URI presented with a third-party content item of a third-party content provider by the web browser of a client device on a web page,
• (ii) the click ID identifying the first interaction with the first URI by the client device, and
• (iii) the first interaction with the first URI causing a client application of the client device other than the web browser to display, within the client application, a landing page specified by the first URI, the landing page associated with the third-party content provider;
• send, via a computer network to the client device, responsive to display of the landing page specified by the first URI within the client application, the second URI including the appended click ID identifying the first interaction with the first URI by the client device;
• receive, via the computer network from the client application, a first message including:
• (i) the click ID identifying the first interaction with the first URI by the client device,
• (ii) an application identifier (ID) associated with the client application on the client device, and
• (iii) a client identifier (ID) associated with the client device;
• store, in a memory, a first data structure associating the client ID with the click ID identifying the first interaction with the first URI by the client device;
• receive, via the computer network from the client application, and responsive to an interaction with the landing page specified by the first URI on the client application, a second message indicative of a second interaction with the landing page by the client application, the second message including the client ID and the application ID;
• and
• store, in the memory, a second data structure associating the click ID with the information received in the second message based on the client ID and the application ID.