How to transfer spotify playlists to new phone?

Spotify is web-based, so if you log into the same Spotify account on your new iPhone as your old phone, your entire Spotify library should appear as is. Spotify is in no way associated with Apple, so if you need more help, I would go to https://support.spotify.com

You can use this alternative that eases the transfer your playlist, it is called Musconv

https://musconv.com/