You can delete your account and your data at any time.
Profile → Delete Account. It starts immediately; you do not need to send a request as well.
If you cannot reach the app, email [email protected] from your account's email address with the subject "Account deletion". Once we have verified the request we complete it within 30 days.
A shelf price is a fact about a store on a date, not personal data about you. Once the link to your identity is cut, that record helps other shoppers see accurate prices. So the observation stays, but it belongs to nobody.
If you would still rather your observations were removed entirely, say so in your deletion request.
Profile → Export my data gives you your profile, shopping history, lists, receipt metadata and alerts in a machine-readable format.