OK. Decided to do the test on my iPad Mini 5 as I had packed away my old iPads ready for sale. This means I have just downloaded the Sooloos app from the Apple store as I have only been using Roon recently.

Everything worked perfectly (and I didn't even need to sign in to Tidal - it must know me from using it for Roon and/or my other iOS devices).

What I can't do at all easily, as they are packed away, is try using one of my C10s or using my ensemble as a core.

Cinema/Music: Trinnov Altitude32 8-16,218,Cloud 4 channel, Marantz UD5007,DSP5200SE(2+C),DSP3300(4),DSW(2),271,MShort Ceilings,AppleTV 4K
TV: Marantz SR7013 Wharfedale Diamond 9x4+Celestion(C)
Music: Roon,i7NUC8gen,QNAP TS253A, Sony Scala, MS200, Garrard DDQ650,Wharfedale Diamond 12.3
Kitchen: AD88 (bluetooth via i80).