Plain Lyrics are just the plain text of your lyrics. Plain Lyrics are available in Apple, Spotify, Tidal, Google, Musixmatch and Lyricfind.
Synced lyrics are lyrics that are timed to your music. On platforms that support synced lyrics, like Instagram, Apple Music, Spotify and TIDAL, your fans will see your lyrics scroll in time with your song for the best sing along / Instagram story experience.
Note: Synced Lyrics are only available on Musician Plus and Ultimate subscriptions.