I am back to help Paul, and CP, I have some interesting news regarding Android DLNA apps after I comment to Paul.
OK, Paul, you have a limited set of hardware devices, and I agree with CP, you need to use a DLNA app on the iPhone, but since Apple barely supports the DLNA platform, the choices of iOS apps are quite limited. I even searched the Apple app store for DLNA as well as UPNP (another term for DLNA). The most-reviewed app by a very large margin is PlayerXtreme, I have it and do not like it It’s UI is very plain-jane and hard to traverse. I could not get it to shuffle play from my entire iTunes Media library, although I did not try every possibility, so it might. It selects from both DLNA media servers on network as well as shared devices. You will see your My Cloud listed as a source twice, as each type of source can be accessed. The DLNA source shows you three folders, Music, Photos and Videos, use this source. See if you can find a way to shuffle or random play.
A free iOS DLNA app I know well and often use is called Belkin MediaPlay and it was developed from the highly regarded, (but not available anymore,) Twonky Beam app. The Belkin version is actually Twonky Beam wrapped up in a Belkin cover. It does not shuffle play, but you can create a playlist on it and then play from that playlist on your iPhone/Pad. I create100-track random playlists using iTunes program that are stored in same folder as my music, and MediaPlay can play from them. You can instruct the app to Play All tracks in succession. This is my way to “shuffle play” using iThings. The app has other nice features I will not get into for now.
OK, for CP, I have found quite a few good DLNA apps I like to use on my Kindle (Android) tablet. One is MediaPlay listed above. I also use the free Avia app, and it has been my favorite until a few weeks ago. I try not to put too many of the same kind off apps in my devices, but I have heard good things about BubbleUPNP, and it recently appeared at the Amazon app store and I installed it to give a test run. It is now my favorite DLNA app. So much so, I paid the price of $3.50 to completely enable all features such as “Shuffle Library” and remove the obnoxious ads. It will shuffle all music tracks from my NAS and elsewhere
And, just last night, I discovered that this past October, a new company has resurrected Twonky Beam, and they have released the DLNA receiver app for the Amazon Fire TV. I installed it on my Fire TV, and all three of my above mentioned DLNA apps can beam music to it. So, at this moment, the Bubble app is sending a shuffle of my entire music library to the Fire TV onto television, (which is also connected to my stereo system) where I am listening to it in excellent stereo sound. You have to try it yourself; it’s great.
(My Roku has the Twonky receiver app on it too, so I can do same as w/Fire TV.)
Paul, get yourself an inexpensive small Android tablet so you can join in the fun, too.