No, the REX iPhone app and the iPad app are designed to work as a team. The phone version is designed to be a reference tool. It is a contact manager that allows you to easily place calls to your clients or navigate you to your next appointment. It also allows you to see your schedule, create a new appointment, create a new task, or view a patient file. The iPad and Mac version contains full functionality, allowing you to enter chart notes, create invoices and run reports.