I have this problem too... The volume scale is far too large making any adjustment impossible... I can barely get it off the first few increments before it's too loud... wasting 95% of the rest of the scale... Really anoying..
I notice that only two people have hit the "Me Too" button... If you have the same problem and comment here it might be more noticable to press the the "Me Too" button?
Same here. Since the beginning of using Spotify with SONOS. And not only a iOS issue, also playing from OS. I like the integration a lot but the sound level is indeed way off.
Playing from my iMac to my SONOS through an AUX OUT cable directly into my SONOS:PLAY5 (and SONOS BRIDGE to connected external amplifier and speakers) for example requires setting the SONOS volume up to about 50% of the slider. Whereas playing from SPOTIFY to exactly the same speakers requires both SPOTIFY AND SONOS volumes to be set at extreme low levels.
See the screenshots of my volume settings for 'medium loud' listening.
Strange SPOTIFY support doesn't even seem to bother acknowledging the issue and (scheduling to) assess and if necessary fix it. We're all paying customers I presume. I'm Premium Family client for years now, the SONOS hardware isn't particularly cheap either, so is it strange to expect some kind of response on a pretty reasonable request?