2025-06-30 00:00:00 NOTICE: It is not possible to use viafirma Mobile to sign documents or authenticate in web applications which don't use Viafirma paid services. That mobile client allows using your previously installed digital certificates on your device, in order to perform secure authentication and advanced digital signature in web and mobile applications integrated with Viafirma Platform. Currently, Viafirma can be used with digital certificates issued by many Certification Authorities registered in Spain and many other countries, such as FNMT, Firmaprofesional, Camerfirma, Izenpe, VeriSign, CatCert, ACCV, Avansi Ca.... For further information visit our website www.viafirma.com.