Rush works great for me

I saw this post yesterday, but haven't checked it out:

https://piefed.social/c/opensource@lemmy.ml/p/1385738/lyrium-lyrics-viewer-for-android

I have lrcget run on my library to grab missing lyrics each night and use Symfonium for listening and displaying the lyrics. If I need to, I go out to Genius.

I tried a lot of them. SongSync was the only app that gave me decent results. It can download synced lyrics like you want, but it depends on the lyrics provider. Spotify doesn't work, Apple does but kinda broken. Stick to the other options.

What exactly are you looking for? If you're looking dor a music player with integrated lyrics being shown line-by-line, try OuterTune one github.

What’s wrong with the endless supply of websites? What does an app give you?