I have LOTS of pics and videos there. It is free up to a certain number of MB or GBs of file storage. My albums are private, password protected.
Of course, practically speaking, anything you post can be used by anybody who can snatch it off the page. Some photo sites can offer a protection against "right clicking", but I dunno if that's any good against screen capture aps.
Copyright laws protect you if anyone uses your photo for commercial purposes.
Killdeer