Here are frequently asked questions and their answers:
How does Admin Kit keep the backup data?
Admin Kit doesn’t store the backup data per se. It just automates the site backup according to the schedule and only holds the backup URL. The products (Jira and Confluence) keep the actual backup data.
Are data of the installed apps on the site included in the backup?
Most likely, yes; however, it depends on the app implementation. So we highly recommend reaching out to the app vendor to ask if the app data is restorable with the product backup.