Hello, I am looking for a way for my father’s smartphone that has apple music and is android that can send music just as I can from my iphone, is it possible what I ask?
Try looking into Bubbleupnp app. Bluetooth may be another possibility although I’ve never tried this with Volumio.
Android has a limitation in that you cant steam the overall audio output from the phone, as if it was plugged into the headphone jack for example, but you can stream individual files and audio from some apps.
Good luck