iOS-SOCKS-Server

I’d guess yt-dlp (1) + cookies from your browser or Google username and password. You can run yt-dlp on iPhone in a-Shell (2). a-Shell supports Apple Shortcuts, so you could, for example, make a shortcut that runs ‘ yt-dlp -x -f bestaudio -o "% (playlist_index)s - %(title)s.%(ext)s" <PLAYLIST URL>’, which downloads a playlist and maintains the order (e.g 1, 2, 3 and so on). On a side note, a-Shell can help you get around tethering limits using iOS-SOCKS-Server (3) or an equivalent. On Android, PDANet is great for this, but on iOS it takes a little more work. 1: https://github.com/yt-dlp/yt-dlp 2: https://holzschu.github.io/a-Shell_iOS/ 3: https://github.com/nneonneo/ios-socks-server

Google Fi, along with many other mobile telecoms, tend to limit the speed that you can attain from tethering, especially when roaming. Since computers don’t usually expect this, programs tend to misbehave on such metered connections. In fact, I built a tool to specifically circumvent this: https://github.com/nneonneo/iOS-SOCKS-Server. It provides a SOCKS proxy through which you can tunnel any TCP connection, and have the connection appear to originate from your phone (and thus not be subject to the tethering rate limit). I used this when I was in China recently (2019).