Right, it's meant for portable desktop apps. You have to compile iOS apps on a Mac anyway so I'm not sure there'd be any demand for Conveyor's cross-building support for iOS apps.
If you target cross-platform frameworks that don't require Apple's toolchain, it can be made to work. For instance if you write an Electron or JVM app for the desktop then Conveyor can ship it from anything, because all the native components come pre-compiled in that case. But I don't think many people are writing mobile apps in that way.
