1. A user interaction contextualization system, comprising: at least one processor; a communication interface; and memory storing computer-readable instructions that, when executed by the at least one processor, cause the system to: receive, via the communication interface, a notification from a mobile application installed on a user device, wherein the user device is a smartphone; collect and analyze, by a contextual data sourcing module of the system, contextual data from a plurality of data sources via a first real-time data feed, wherein the plurality of data sources includes internal data sources, external data sources, and the user device; collect and analyze, by a user engagement tracking module of the system, user engagement data associated with the user device via a second real-time data feed; determine, by a user recapture module of the system, a likelihood of abandonment associated with the user device, based, at least in part, on the contextual data and the user engagement data; and provide, by the user recapture module via the communication interface, client-side instructions to the mobile application installed on the user device to initiate a user recapture solution, based on the likelihood of abandonment.