US Patent 9477483 Tracking mobile app installations

In an embodiment, a data processing method comprises receiving, at a mobile computing device, a request comprising a protocol identifier, a label value, and a data value, wherein the protocol identifier is associated with a protocol implemented in a first mobile app; using a protocol handler in the mobile computing device associated with the protocol, initiating processing of the request; using a native code element in the mobile computing device: intercepting the request when the label value matches a particular expression, and in response to the intercepting, providing the data value to other than the first mobile app, the protocol handler or the native code element; wherein the method is performed by one or more computing devices.