Authentication App
Manage your digital identity on your mobile phone in a simple, secure, and legally recognised way.
Merchants and Corporate Clients
For organisations across all sectors seeking to digitise and streamline signature and identification processes with full security and legal validity.
Consumers
For individuals who want to sign and authenticate securely, with legal validity, anytime and anywhere.
Financial Institutions
For institutions aiming to ensure secure, compliant, and efficient digital onboarding, authentication, and signature processes.
Our current locations
Portugal
The wallet of choice in Portugal for remote certificates and identification documents.
Unlock seamless authentication and legally valid signatures in seconds
Total Mobility
Qualified signing and authentication anytime, anywhere.
Legal Validity
Sign with qualified digital certificates, legally recognised across the European Union (in compliance with the eIDAS regulation).
Security
Facial biometrics, encryption, and multi-factor authentication ensure robust identity verification.
Multi-profile
Manage certificates for personal use, professional roles, and corporate representation within the same app.
All your digital signatures, certificates, and IDs — managed securely, anytime
Digital Document Signing
Sign PDFs with legal validity directly from your smartphone.
Authentication on Digital Platforms
Secure access to public and private portals with high-trust authentication.
Digital ID Wallet
Secure storage for documents such as the Citizen Card, passport, and residence permit.
Personal and Professional Attributes
Share personal and professional data and attributes from documents and certificates stored in the wallet, with full control.
Digital Certificate Management
Identify certificates by name and colour, set a favourite, and request suspension or revocation directly in the app.
Issuance of a Qualified Certificate in the App
Complete digital onboarding with biometric validation and immediate issuance of a personal certificate.
Who already trusts us
What our customers say about us
“The integration with the mID app allows Gnotarium to offer notaries a more secure and convenient platform, enabling them to sign all documents prepared in Gnotarium directly on their mobile phones without needing their PC. With this added layer of security, notary offices can now ensure greater efficiency in their internal processes while maintaining the legal validity of document signatures.”
“Since I installed and started using the Multicert ID app, it has become my only way to sign digitally. The app offers the mobility, security, and efficiency required to meet today’s market demands, making it an indispensable tool in my daily routine. In my role, which is mainly commercial and managerial, I’m rarely in front of a computer. My phone has become my ‘desk,’ where I have all the collaborative tools I need.”
“A professional certificate linked to the Multicert ID app seemed to be exactly what we needed to digitize our processes. (…) Before, when I was away from the office, these processes would be left pending, and once I returned, I had a pile of documents to sign. In that sense, for me, the Multicert ID app was a relief. Because nowadays, regardless of where I am, if there’s a contract to sign at that moment, I now have this reliable, trustworthy method (…) it’s so quick and easy that even non-urgent matters get done right away. It’s resolved instantly because it takes me only a few seconds to sign.”
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