A-Trust Signatur is a free iPhone app developed by A-Trust GmbH, a leading Austrian trust service provider. This app allows you to easily and securely sign digital documents in compliance with eIDAS regulations across Europe.

With A-Trust Signatur, you can enjoy the convenience of a quick two-factor authentication process using your device PIN, Touch ID, or Face ID. To utilize this app, you will need an active Handy-Signatur, ID Austria, or xIDENTITY (EU-Identity Mobile) which can be obtained through a registration office.

One of the key advantages of A-Trust Signatur is the use of certificate-based authentication processes in A-Trust's highly secure data center. This ensures the highest level of security in the digital world.