RoundUp App requires 2 pieces of information from a donor: A credit card, and a bank account.
The credit card is used as a funding source (credit or debit card) to charge your donations at the end of each month. Then the bank integration is used to calculate the RoundUps; when you sign into your bank, we do not see your credentials, and are provided READ-ONLY access to your account. This allows us to take a snapshot each hour and RoundUp any new transactions. This is the only way for the amount of the RoundUp donations to be calculated.