NFC Tags are not paired with phones the way Bluetooth is, but whether it will do the same thing on your phone as someone else's is entirely dependent on what that specific thing is. Most phones have default behaviors when reading an NFC tag and encountering common NFC data, for example if it reads a web site, it will launch the browser and nav to the site. However for scripts, such as TecTiles or NFC Task Launcher, you will need to have the scripting app installed in order to even run the script and then yes, you will need the same apps the script calls on your phone or it will not work.