I did download your iOS project and ran into the problem you described. However, I was not able to reproduce this problem if I generate the iOS project myself. I noticed that pressing the refresh button doesn't seem to do anything in your iOS project and no muses shows up in the list.
Can you confirm that you performed this step that was outlined in the Getting Started guide: "Click on the Canvas element, then drag SampleApp.cs to the “Missing (Mono Script)” text box in the Inspector view."
Basically you need to drap the SampleApp.cs file to the box that says Missing (Mono Script), please see attached image.
Another thing is that if you are using a 2014 headband (it should have two charging ports, one on each ear), then you must pair the headband in your iOS bluetooth setting first before you can see it show up in the app list.
If these still doesn't work for you, can you please let me know the version of Unity, Xcode and iOS device.