Hi Everyone!
I'm Michael, one of the developers at MultiPie working on CC iOS. Thanks for all your help so far with testing the app. Feel free to report anything you believe is broken. The only issue we're aware of at the moment is the changing icon sizes at the top (and features that don't exist yet of course!).
If you encounter any more issues, it would be useful if you could send a log from inside Calibre Companion. I've attached a screenshot showing where you can find the buttons. The most recent log is for the current session, so if you just encountered a crash you'll probably want to send the 2nd item in the list.