This applies to Social Feed, Announcements and Crowd Pics pages — the same page type with different settings.

Posts and the photos and videos attached to them can be exported along with the rest of your app's content. You get the post text, who wrote it, when, and links to the media. This is the way to keep the photos from an event after the app has served its purpose.

See exporting content from your app.

Your app analytics show page views, likes and comments, so you can tell which feeds people actually used.

These analytics are available on the Core, Team and Volume plans. See app analytics.

They do not need you to run an export. Anyone can save a photo straight from the app — see saving pictures posted to a social feed page.