With Teamup, you can enable comments for all users. So, even with read-only permission, everyone can use the comments but can’t make other changes to the calendar. This means you can securely share a calendar of events with a group or even with the public, or share an individual event page. Viewers can't change the events, but they can use the comments.
Immediate feedback is often more accurate and specific than feedback collected hours, days, or weeks after an event. So, before an event closes out, remind participants that they can leave feedback on the event (or the event page) with a quick comment. This can be a helpful strategy for getting insights that might otherwise be lost. For example, after a workshop or webinar, participants can leave questions, notes, and tips. After a community outreach event, volunteers can share ideas and suggestions to make the same event easier or more effective.