In my youth, back when I was still in a school that ranked students' progress through the educational system with numbers and our "top of the line" computer was a 256 color Macintosh (not Mac, a Macintosh), I played a lot of adventure games. Mostly because they were all that was available for our non-PC machine, but also because I really enjoyed them. A good many of them were old Sierra titles but I also dabbled quite a bit in text-based games. I still fondly remember getting my hands on a boxed collection of a lot of these things, including titles like Zork and The Hitchhiker's Guide to the Galaxy. I never beat any of them, but I would sit there and try for hours.
Now, I know there are some text-based adventure games and collections of text-based adventures games on the App Store already, but WibbleQuest is something different. It does allow users to partake in plenty of interactive reading, but it's real purpose is to create said experiences using a pre-constructed framework. Designed by Orta Therox, a developer with perhaps the most awesome name in existence, it's meant to be a pain-free (relatively speaking) tool for adventure manufacturing.
Users can craft their own tales with the aid of a couple of pre-built examples, and eventually work their way up to more extensive endeavors. They probably won't be creating a masterpiece right out of the gate, but with some practice (and some handy tutorials) they could presumably make a piece of interactive fiction about anything. As a former adventure-hound, this both pleases and excites me.
WibbleQuest isn't an app in the technical (or literal) sense, however. It's a prefab framework meant to be used on a computer. Games can be transferred to an iOS device for testing or just plain playing, but the actual creation takes place on either a laptop or desktop. Not an unexpected way of doing things, as I can only imagine how irritating it would be to try programming with a given device's keyboard.
The curious, anxious or even bored can check out WibbleQuest on its official website for free.