Just switched to an iPhone from my ancient Galaxy Nexus. App recommendations for a new iOS user?

Hey Apple Core!

I just switched to an iPhone 5s yesterday from my positively ancient Galaxy Nexus. So far it's great and I'm loving the switch. I was just wondering what some of your favorite apps are and what you'd recommend for a new user. I already know some as I do follow tech news and such so I already have VSCOcam, Mailbox, and Fantastical calendar. I'd love to hear what you guys have to recommend :)