The Swisscom Signature Approval App is a two-factor authentication application that allows secure authentication to approve an electronic signature. The app can only be used with Swisscom Trust Services or its partners services. The second factor is either your device passcode (PIN), face recognition (e.g., FaceID), or your fingerprint (e.g., TouchID).
Use of the Swisscom Signature Approval App is free of charge.
For further information on the Signature Approval App, please visit https://trustservices.swisscom.com/en/home
Additional help is available at https://trustservices.swisscom.com/en/support/help-center