The Paychex Flex app can be used by previously registered Paychex Flex (paychexflex.com) users. Paychex Flex keeps employers and employees connected to the most vital payroll and benefits features. Available features will vary and are dependent upon your company's plan options. EMPLOYERS Touch ID and Face ID authentication Submit payroll - Enter, review, and submit on the go. - Resume payrolls started on your tablet or desktop. Access vital information - All reports, including