You mention that you use the Plaid API to get the transaction data. You might delete _your_ copy of the user's transactions, but won't the user's transactions still exist somewhere at Plaid?
It feels very dishonest to say that you delete the user's data, while handing it over to a third-party ...
It feels very dishonest to say that you delete the user's data, while handing it over to a third-party ...