What is stored
Only data about the owner's own Facebook Page and YouTube channel, all on the owner's PC: the access tokens (as local files), a record of each scheduled post (folder name, time slot, text, the ID that Facebook or YouTube returned, its state) and a log of what the tool did. Nothing about visitors, followers or commenters is collected.
Remove the tool's access
For the owner of the Page or channel:
- Facebook: open Settings & privacy, then Settings, then Business integrations (on some accounts: Apps and websites). Choose the app and select Remove. Its access to the Page ends at once.
- Google and YouTube: open myaccount.google.com/permissions, choose the app and select Remove access.
- Posts already made stay on the Page or channel until you delete them there, in Meta Business Suite or YouTube Studio.
Ask for deletion
Anyone can ask. Email amazinginfojosh@gmail.com with the subject "Data deletion request". Say what you want deleted and, if it is about a Facebook Page or YouTube channel, which one.
Within 7 days the matching tokens, post records and log entries are deleted from the owner's PC, and you get an email confirming it. If nothing about you is stored, the reply says so.
More
What the tool uses and why is in the Privacy policy. Questions: amazinginfojosh@gmail.com.