What is stored

Your account identifier, from Sign in with Apple or Google.
The cards on your list and any price targets you set.
A push token, if you enabled notifications.

What is not

CardPulse does not track you across other apps or websites, does not sell data, and carries no advertising SDK. Sign in with Apple keeps your email private if you choose to hide it.

Deleting it

Profile, then Delete Account, inside the app. The account and its data are removed.