Best client for macOS / iOS?

[simoncn]

The great thing about UPnP is that you can mix and match your setup by choosing any server, any control point and any renderer from a large selection of alternatives from different manufacturers or developers.

The downside of UPnP is that you need to mix and match your setup by choosing a server, a control point and a renderer from a large selection of alternatives from different manufacturers or developers.

Many people use a dedicated renderer (often described as a "streamer") which typically comes with its own control point app. All you need to do is choose the server and there are a few good options for this available.

You are using MacOS and iOS for your renderer and control point, so you can't take advantage of any control-point apps from the streamer manufacturers. You want to use UPnP rather than staying within the Apple/iTunes world, so you can't take advantage of anything developed by Apple. This leaves a limited number of third-party apps that provide UPnP control point and/or renderer capabilities on MacOS or iOS.

For iOS, I suggest you start by looking at mconnect. This app includes a UPnP control point and renderer and works well with MinimServer.

For playback on the Mac, you can use mconnect on iOS as the control point and install the free OpenHome player (see this page) on the Mac to use as the UPnP renderer. I don't know of any good UPnP control points for the Mac but others might have some suggestions. VLC includes a UPnP control point but it has a bug (see this page) that prevents it working correctly with MinimServer.