A-Trust Signatur

The A-Trust Signature App: Security on the Go

A-Trust GmbH · at.atrust.tanapp

Not rated yet 1M+ downloads v5.1.7.0 16 MB Android 8.0+ PEGI 3 · Everyone

Download APK 16 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v5.1.7.0 (108)
Updated: Mar 15, 2026 (7 months ago)
APK size: 16 MB
Requires: Android 8.0+ (API 26)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Productivity (app)
Listed since: Mar 11, 2021 (at least)
Permissions: 14 (1 sensitive)
Website: handy-signatur.at
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

A-Trust Signatur is an app by A-Trust GmbH in the Productivity category, listed since at least March 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 5.1.5.0, the minimum Android version rose from 6.0 to 8.0. It asks for 14 permissions, 1 of them sensitive: camera. It asks for the same permissions as version 5.1.6.0.

Description

From the listing uploaded by “appupdater”.

With the A-Trust signature app from the leading Austrian trust service provider, you can digitally sign even more easily and, thanks to eIDAS conformity, legally secure throughout Europe. The app enables fast two-factor authentication using device PIN, fingerprint scan or biometric face recognition. It can be used in connection with an active Handy-Signatur, ID Austria or xIDENTITY (EU-Identity Mobile), which you can apply for at a registration office. The use of certificate-based authentication processes in A-Trust's high-security data center ensures maximum security in the digital world. Further information can be found on the A-Trust website at www.a-trust.at.

Version history

3 versions are listed, going back to v5.1.5.0. Since v5.1.6.0 it requires Android 8.0+.

v5.1.7.0 LATEST Mar 15, 2026 16 MB TRUSTED v5.1.6.0 Mar 17, 2025 16.1 MB TRUSTED v5.1.5.0 Mar 22, 2026 16.3 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Mar 15, 2026.
Certificate issued to “A-Trust” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Mar 15, 2026
Validated against Google Play Mar 15, 2026
Signed byCN=A-Trust, OU=IT Operation, O=A-Trust, L=Wien, ST=Wien, C=AT
Signing certificate (SHA-1)BB:23:EA:10:5B:26:5C:3E:0A:02:0E:AA:93:48:52:3A:3F:A8:04:FE
File MD50ad29396c21eafcb45e147d368667ecc
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (14)

A-Trust Signatur requests 14 permissions, 1 of them sensitive.

Camera Sensitive android.permission.CAMERA
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) at.atrust.tanapp.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Manage device policy lock credentials android.permission.MANAGE_DEVICE_POLICY_LOCK_CREDENTIALS
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Request password complexity android.permission.REQUEST_PASSWORD_COMPLEXITY
Show notifications android.permission.POST_NOTIFICATIONS
Use biometric hardware android.permission.USE_BIOMETRIC
Use fingerprint hardware android.permission.USE_FINGERPRINT
View network connections android.permission.ACCESS_NETWORK_STATE
Write internal storage android.permission.WRITE_INTERNAL_STORAGE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

A-Trust Signatur APK: questions and answers

Is there a version of A-Trust Signatur for older Android phones?

The current version needs Android 8.0 or later. Version 5.1.5.0 is the newest listed build that installs on Android 6.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 5.1.5.0 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the A-Trust Signatur APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 0ad29396c21eafcb45e147d368667ecc.