One address for everything: support@redible.co. It is read by the people who build the app, not by a ticket queue.
Anything, really — but these come up most often, and knowing which one it is helps us answer faster.
You can delete your account and all associated data from inside the app: Profile, then Delete Account. If you cannot open the app, write from the address the account uses and we will process it. The account deletion page explains exactly what is deleted and when.
One thing worth knowing: deleting the account does not cancel an App Store subscription. Those are managed in your Apple Account settings, and the two are separate.
What we collect, what we do not, and who processes what is set out in the Privacy Policy. If you want a specific answer about your own data, write and ask — we will give you one.