Keynote

See the latest activity in a shared presentation in Keynote on Mac
You can easily get updates on what’s happened in a shared presentation. The activity list captures when anyone you’ve invited to your presentation does any of the following:
Makes edits, including adding, editing, resizing, moving, and pasting (but not style changes).
Adds comments and replies to comments.
Joins a shared presentation for the first time.
Manages the presentation, like restoring it or changing its password.
You can also get notifications about different activities.