What is the difference between iTunes and iCloud?
iTunes is a piece of software on your computer. There's also the "iTunes Store" which is part of Apple's web site (the bit you buy music and apps from).
iCloud is a cloud storage service which allows you to back up and sync files from your Apple devices. There are also small pieces of software (control panels etc) called "iCloud" which allow you to control the settings for this synchronisation.
iTunes is an application you install on your computer
iCloud is an online service offering storage for iOS backups and synchronization of selected content
Thanks. Not only correct but also nicely put
Choosing an iOS backup method (Should I use iTunes or iCloud to back up my iOS device?)
Thanks. Please tell , can apps be updated from itunes directly without connecting iphone to pc ( if both cellular and wifi update is enabled on phone setting )
How to Update iPhone Apps Via iTunes