Reading Time: < 1 minute
Point Poker: free (accepts donation). A nice pointing tool, click start session, for collaborators: put in name, and join the session.
Fun Retro: there are free and non-free choices. The free ones are public. It’s a bit like Trello. For that matter, if someone likes to keep it private, I think Trello is a good alternative: just put in swimming lanes such as liked, learned, lacked, longed for and action items