Ultrasonic and DSub(2000) both do. It’s so incredibly useful on roadtrips. Works really really well. I have the app live on the as card in my phone and keep the cache at a massive 100Gb, I have all my favorite music stores, in flac, ready to go at all times.
Clients often are better suited for music, specially for mobile. For example with Subsonic clients (Navidrome, Gonic, etc), the client aggressively caches the queued songs, which is super helpful when there are hiccups in the network while traveling. A few clients allow me to configure the cache size, allow me to mark some titles are always cached, allow me to browse the cache (case I don’t have network at all). It’s just way better suited for music.
And on the desktop clients are way lighter weight.
It’s a feature not a bug 🤪