So I fixed my iPhone 5c and tested iCamSource on there and it works fine. Doesn't work on any devices using iOS 12.1+ though.
the iPhone 5C is running iOS 10.3.3. Ran a full factory reset on the iPhone 5c and on my iPhone to make sure it wasn't any settings I played with, but same problem. iPhone 7 doesn't work, but 5C works perfectly fine.
There's no error. It just shows connecting and wont connect at all on any device but the 5c
EDIT:
It was an issue with Fido/Rogers on the newer versions of iOS. No idea what it is, but any other providers works fine and connects.