What are some free IPhone apps for teens?

I'm 13 and I got an iPhone 5 for Christmas. What are some free apps that are cool and I could use alot?

Instagram, kik, ifunny, Facebook, Twitter, bubble pop, can't think of anything else: |

Snapchat, twitter, tumblr, vine, kik, tango, skype, and feature points. Http://featu.re/2NTPBE

This site is great for finding free apps and I got a free iTunes card too!
http://m.freemyapps.com/share/url/a314457f

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