Why can't LC do what PencilCase does?

[Geoff Canyon]

PencilCase <http://www.pencilcase.io> has a player app on iOS
<http://appstore.com/pencilcaseplayer> so you can:

1. Design your app on a Mac
2. Upload it to their system and get a code
3. Give that code to anyone
4. Anyone can install the PencilCase iOS app
5. Anyone can put in your code to run your app immediately.

If they can do it, shouldn't LC be able to as well? Or is there something
I'm not thinking of?