The fine print

What happens to your data

board

The board is a file on your Mac. No account. No sync. No one else reads it.

Pages are live. Cookies, cache, and logins stay in your local profile. You stay signed in after you quit.

On your Mac, in the system keychain. We don’t sync them. We don’t see them.

None from us. Page ads are blocked by default. You can turn that off.

Close Marble and it’s closed. The board stays on disk.

On launch we send one anonymous ping: a hashed install id, app version, and OS. No URLs. No board. No email.

If you join the Windows waitlist, we keep the email you typed so we can write you later.

marble.surf has no Google Analytics and no session replay.

No SOC 2 or ISO 27001.