I'll freely admit it, without shame or regret; I've written fanfiction before. Not just in my youth (although I don't consider myself "old" yet), but recently. Like in the past week. Don't ask, I won't provide links. Anyway despite being something of a sneer-inducing pastime among certain circles, fanfiction is still a legitimate way to flex those writing muscles. And much like regular old published fiction, it can run the gamut between fantastic and complete trash. For those who enjoy a good yarn regardless of its origins, or for those who are simply curious, there's FanFiction by PentaLoop.
The app currently supports fanfiction.net, and already sports an ever-growing library of thousands of tales. Users can search for specific subjects, keep track of what they've been reading, and even mark their favorites in order to come back to them any time they want. It's pretty much akin to a typical eBook app, only it deals exclusively with fanfiction. Which is kinda cool, really.
FanFiction is sitting in the App Store, just waiting to be downloaded. For free, no less. Whether for legitimate interest or the desire to read something akin to a literary train wreck, I think it's worth a look.