What's the difference between the Apple iPad,iPhone and iPod Touch?

[Satanic Mortician]

I wanna know the differences between them and I wanna know the different features and uses as well.

 

[PrettyKitty]

iPad is the best for porn.

 

[?ll??q?n ????†?† ™]

Each one is more expensive and pointless than the last?

 

[Laura]

Google is your friend

 

[Eli Cha]

the size is different
different apps