The customer can voluntarily opt to have their card details saved on the system, if you prefer processing payments for them without having the customer submitting details every time.
Tracking: The app shows an overview of outstanding, paid, cancelled and past-due-date invoices so you can track payments wherever you are. If you cancel an invoice, an optional notification can be sent to the client. Individual invoices and estimates even show whether they have been viewed by the customer (so they can’t get away with saying they didn’t see it!).
Register payments yourself: If you’ve received money in cash, by cheque or BACS, register the payment through the app yourself. If you have card details (for example, given over the phone), manually input these to process it through Square. If you have Square Reader, the app can connect with it via Bluetooth for direct payment via chip and PIN or contactless.