Siri is an iPhone’s feature where you can ask any question and it will gives you answer. Shazam is a smartphone app which listen music and told you the song’s name but just from current device. You can download it for iPhone , Android device and also for Windows & Windows Phone.
But now there is a new interesting feature in iOS 8 which listen the music from any device on your surrounding like on your laptop, PC, mobile phone or from CD player and will tell you the name and all detail about song you are listening. May be Apple take lead with this feature against its rivals ‘Google’s Now’ and ‘Microsoft’s Cortana’ feature.