The local storage of custom workouts is a pain. It’s much easier to create them on a PC than on iOS but then they can’t be seen on another devise without going through the clunky move process that requires plugging in your iOS device to your PC and downloading some 3rd party software.
There have been a few suggestions on putting it on the Zwift website or in Dropbox. Both of these would solve this major hole.
Anything else would be great. I cannot seem to get them into iOS at all. I can create on the PC but when i plug in my phone and open iTunes i cannot open the Zwift folder to move the custom workout to