Justinmind's official Facebook page: product updates, feature announcements, and tips from the prototyping-tool maker, not a member discussion group.
Best for staying passively updated on new Justinmind features and releases in your feed, rather than for asking questions: this is a brand page, so replies come from the Justinmind team, not other users.
Only worth following if you're actually using Justinmind day-to-day: if you want peer discussion rather than vendor updates, look for a general prototyping community instead.
It's a Facebook Page, not a Group: there's no member-to-member discussion thread here, just Justinmind's own posts.
The official community for Justinmind prototyping and wireframing software.