If you can call a purely apple designed protocol as Interop. Its no different to the lightning connector. Apple designed it, and trademarked it. If you want to

If you can call a purely apple designed protocol as Interop. Its no different to the lightning connector. Apple designed it, and trademarked it. If you want to play ball you need to pay apple a licensing cut. EDIT: I have just seen they have recently introduced matter support for iot devices. This is a big step in the right direction!