On Android devices, it's possible to set an app (by its android package name) to launch when the tag is read.
// PROTOTYPE int setLaunchApp(const char* androidPackageName);
Note that all of the set options are mutually exclusive. Calling
NFC.setLaunchApp() will clear any
This does not do anything on iOS. An NFC-aware iOS app can read the package name, but in general won't be able to do much with it.