Can I sign up to Plum without a Facebook account? Plum October 18, 2017 16:55 Updated Follow Yes, you can sign up and use Plum without a Facebook account through Facebook Messenger. Find out how here. Related articles Do I need a regular income to save with Plum? How much does Plum cost? Which banks does Plum work with? How do I sign up? Can I adjust how much Plum is saving? Comments 0 comments Please sign in to leave a comment.