The below will guide you through the installation of the EU Login mobile application on your device, how to use it once installed and provide additional information in case you are facing any issue.
Important
Have two IT devices at your disposal
- Your mobile device (smartphone, tablet, etc.), for the installation and long-term use of the EU Login mobile app
- An internet-connected computer device, during the installation of the EU Login mobile app
Ensure you can access the mobile applications store from your mobile device (Google Play for Android or AppStore for Apple)
For the EU Login mobile app:
- Download and only use its latest version
- During the installation of the EU Login mobile app, allow EU Login mobile app notifications and access to the camera on your mobile device.
- If you have uninstalled the EU Login mobile app on your mobile device and reinstalled it and you are now facing issues to use it:
- Go to your EU Login account and delete all mobile devices already linked to your EU Login account.
- Uninstall the EU Login mobile app from your mobile device.
Regarding your mobile device:
- Protect it with a Screen Lock (PIN, biometrics...).
- If you use an Android mobile device, verify and adapt the time to take action from the Settings and Accessibility menu to make sure you have enough time to click on the notification that will be sent to your mobile device during the below procedure.
Install the EU Login mobile application
Watch the video tutorial or access instructions illustrated step by step below the video.
Step-by-step installation guide
1. On your mobile device, go to Google Play Store (Android) or the App Store (iOS), search for and install the EU login mobile app.
2. Open the EU Login Mobile App: You’ll see the “Welcome to EU Login App” screen.
3. Tap Initialise to start the setup.
- When prompted, allow notifications and camera access.
- Keep the app open — you’ll use it shortly to scan a QR code.
4. On your computer – access EU Login
- Open a browser and go to https://ecas.ec.europa.eu/cas
- Log in with your EU Login account.
- Click the Settings (⚙️) icon → My Account → Manage my mobile devices.
- Alternatively, go directly to https://ecas.ec.europa.eu/cas/mobile.
Note: If you already have another strong authentication method (e.g. a previously registered device or eID), you’ll be asked to authenticate before continuing.
5. On your computer, click on Add a mobile device.
Note: The system will request you a stronger authentication than password only if you already have one configured (e.g. The eID).
6. On your computer, enter a device name (without space), choose a PIN code and click on Submit.
Note: A QR code will be generated based on your input.
7. Keep QR code displayed on your screen.
8. On your mobile device, open the built-in QR code scanner and aim it to the QR code on your internet-connected computer device screen.
Note: When the device detects the QR code, it will automatically read it.
9. On your mobile device, enter the PIN code you created and click on Next.
Note: It may take up to 60 seconds for your device to complete the registration.
10. Finish setup
- Once registration is complete, tap Continue to reach the Welcome screen.
- You can now use the EU Login mobile app with your mobile device to authenticate on EU Login's services.
Post-installation steps
If your device is equipped with Fingerprint or other bio-metrics recognition, the bio-metric enrollment screen will be displayed at the end of the enrollment process.
To activate bio-metric recognition, enter the PIN code you chose during your device’s initial setup twice, then tap ‘Continue’. If you enter the wrong PIN, tap ‘Restart’ to try again.
Confirm by authenticating with your fingerprint. You will be automatically redirected to the Welcome screen.
If you choose not to enable bio-metrics and tap ‘Skip’ in the previous step, a confirmation dialog will appear asking you to confirm your decision. You can still enable bio-metrics later in the app settings.
If your device is equipped with FaceID recognition or other bio-metric recognition, an automatic pop up will be displayed to enable bio-metrics. To start the bio-metric activation, tap ‘Yes’.
If you choose not to enable bio-metrics and tap ‘Skip’ in the first step, a confirmation dialog will appear asking you to confirm your decision. You can still enable bio-metrics later in the app settings.
To complete biometric enrolment, enter the PIN code you chose during your device’s initial setup twice.
Important notes
- Each EU Login Mobile App can be linked to only one EU Login account, and vice versa.
- You’ll use your 4-digit PIN each time you authenticate.
- If you change or reset your device, you’ll need to register it again.
Any issues?
If you have uninstalled the EU Login mobile app on your mobile device and reinstalled it and you are now facing issues to use it:
- Go to your EU Login account and delete all mobile devices already linked to your EU Login account.
- Make sure to clear all data and cache from the EU Login mobile app before trying to enrol it again.
- Uninstall the EU Login mobile app from your mobile device.
If the issue persists:
- Make sure your are not using a Virtual Private Network (VPN)
- If possible, disable your firewall for the time of the enrolment as the use of a firewall may cause issues
- Consult the FAQ I have an error code when I try to log in using the EU Login mobile app, what should I do?