There is provided a method of evaluating user churn in wireless networks. The method includes receiving data from a plurality of wireless electronic devices connected to and operating in a plurality wireless networks and/or network types, wherein the data has been collected for each wireless electronic device by wireless device software embedded in an application or memory of the respective wireless electronic device and configured to collect the data when the wireless electronic device accesses one or more of the plurality of wireless networks and/or network types, and wherein the data comprises one or more identifiers associated with the wireless electronic device or a user of the wireless electronic device. The method also includes aggregating the data received from the plurality of wireless electronic devices; analyzing the aggregated data to determine how at least one of the identifiers flows through the plurality of networks, devices, and/or network types; and outputting a prediction or indication of user network churn or user device churn based on which networks, devices, and/or network types the user or wireless electronic device accesses.