Export or delete your data

Both are free on every plan.

Export. In Profile, under Security, you can download your whole record as a file you keep.

Delete. You can delete your account when you're ready, which deletes your record with it. The steps are on the delete account page.

Who can see your record. You, and anyone you invite, one part at a time. The database itself refuses anyone else's request. The Privacy Policy has the details.