Faxing at your fingertips. Fax App is a mobile fax device for your Smartphone. - Send photos, text, or PDFs from E-Mail or Web to conventional fax machines - Fax Cover sheets - Receive live status updates for your sent faxes No registration required. Individual fax credits are paid for with in-app payments. Optional connection with a faxapp.com account possible. In this case, fax costs are covered by a flat rate. Fax receiving is possible. A local landline number is provided.