Good info ^_^. I noticed the same thing while skimming some short stories- lack of an intro/build up/climax/conclusion and other basic elements. You might want to add some formal lingo - you describe everything well, but some people may want to know some terms.
The other thing I'll say, not that I'm saying you need to add it, but it helps a LOT if someone reads some short stories from the masters- want to write a sci-fi short story? Read Ray Bradbury! Isaac Asimov is another. I'm not so much into fantasy, but I am a fan of Edgar Allen Poe, and I don't think I'll ever forget reading short stories like, "The Pit and the Pendulum.
Writing a story on the computer is a lot easier than an iPhone, especially because you can't edit on an iPhone, and you can only look at a small screen. Writing your story in a WP like MS Word is a good idea too, because it has a spell and grammar check.