
About
Easily sign documents digitally and legally across Europe with this app. It offers secure two-factor authentication using your device's PIN, Touch ID, or Face ID, compatible with various Austrian digital identity solutions.
What's New in A
5.2.4
April 20, 2026
Improved performance and code maintainability with no functional changes.
FAQ
What does the A-Trust Signatur app do?
The A-Trust Signatur app allows you to sign documents digitally and legally across Europe. It leverages secure two-factor authentication methods and is compliant with eIDAS regulations, ensuring your digital signatures are recognized throughout the EU.
What are the key features of this app?
Key features include secure digital signing, eIDAS compliance for pan-European legal validity, and fast two-factor authentication using your device's PIN, Touch ID, or Face ID. It also integrates with Austrian digital identity solutions like Handy-Signatur and ID Austria.
Is this app free to use?
Based on the provided information, the app itself is free to download and use. However, you will need an active Handy-Signatur, ID Austria, or xIDENTITY, which may have their own registration or associated costs from a registration authority.
What digital identity solutions is this app compatible with?
The app is compatible with various Austrian digital identity solutions, including Handy-Signatur, ID Austria, and xIDENTITY (EU-Identity Mobile). You can obtain these digital identities from an authorized registration office.
How does the app ensure security?
The app ensures high security through certificate-based authentication processes conducted within A-Trust's high-security data center. This guarantees the integrity and authenticity of your digital signatures in the digital world.





