The best program I was able to find to transfer playlists between Spotify and Apple music during my free trials, and glad I found a discount before buying.
Details of the program are here: https://freeyourmusic.com . Definitely get the basic version first to try it out.
It wasn't as streamlined as I hoped but better than manually re-searching for everything.
From the developers:
Whether you’re switching from Spotify to Apple Music or using multiple music services at once, STAMP lets you easily transfer all your favorite playlists without lifting a finger. Forget manually moving one song at a time and slowly recreating playlists from scratch, STAMP automatically searches for and imports your music for you.
- Moves your songs & playlists across various services
- Allows you to pause & restart the import whenever you want
- Saves at least 10 hours of continuous work when you move an average of 1200 songs
- Moves music to Apple Music, Google Play & Spotify
- Moves music from Spotify, Apple Music, GooglePlay, Rdio, YouTube, CSV & Deezer
Premium includes:
- Unlimited songs
- Unlimited playlistsCompatibility:
- Mac
- Windows
- Apple Music
- Google Play Music
- Spotify
- Rdio
- YouTube
- Deezer
-CSV
And For a limited time, take 10% OFF your first purchase when you subscribe to receive email updates