What the extension sends:
• Your Spotify liked songs and playlists, read from your authenticated session on open.spotify.com.
• These are transmitted only to your own hearted. account at hearted.music.

How it's used:
• Solely to sync and display your library in hearted., and to relay playlist management actions you initiate in hearted. back to Spotify.

What it does NOT do:
• Does not collect your Spotify password, login, payment details, or private
messages.
• Does not sell or share your data with any third party.
• Stores only what's needed to sync: your Spotify access token, your hearted.
API token, and the last sync timestamp (in local browser storage).

Full policy: https://hearted.music/privacy