Zipbooks is a bookkeeping website that allows businesses to send invoices and receive payments. Zipbooks is accessible through their app and website. They have invoice template options, similar to Transact. However, transact does not require businesses and users to download an app. The unique feature of Transact is how simple and efficient it is. Users and customers are able to access their invoices via text message. Customers are able to receive their bills and pay their bills by clicking a link that is sent to them via SMS. With the click of one button, patients and customers can review and pay their bills. Introduce Transact invoicing to your business or practice.