The popular aapplication in iphone.

The popular application in iphone has facebook,Instagram,YouTube and twitter. Facebook is the most popular social network in the world. Of course it's the most popular app of all-time.Instagram is the best way to share photos with friends.YouTube hit the App Store just last year when Apple took YouTube off the iPhone as a default app. It's already one of the five most popular apps of all time.Twitter is the best way to get a quick update on what's happening around the world on your iPhone.I like Youtube because I like to watch videos as music and movie etc.It was funny and relaxed.