Yes, they are public.
Your check-ins are held in a
publicly available URL
that
anyone
with a web browser can see.
Unlike our other lists, you
do not
currently have the option for private check-ins. Please be mindful of this if you check-in for titles that you are not keen for others to know you are watching.
However, you do have the option to delete any title you've checked in on the Your Check-Ins page.