StrongKey FIDO Server

StrongKey FIDO Server is ranked #4 of 45 in biometric authentication software on The Geeks Club. It runs on Android, API, iOS, Linux, Self-hosted, Web, Windows. There is a free plan.

StrongKey FIDO Server plans and pricing

All plans

Community Edition Free Open source download · unlimited users, applications, and transactions stated for the solution strongkey.com · 30 Sept 2026

Enterprise / hosted Not published Fixed-fee or all-inclusive subscription; no per-user or per-transaction fees · enterprise hardware or managed hosting strongkey.com · 30 Sept 2026

Compared on biometric authentication software

Free plan: Yes
Biometric methods: Apple and Android phone biometrics; FIDO2-certified authenticators
Deployment model: hybrid
Supported platforms: Web browsers, Windows 10, Android 7, Apple iPhone, Android devices, FIDO-certified authenticators
SDK languages: Java, JavaScript, Node.js
Audit logs: Yes

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StrongKey FIDO Server

Purpose: StrongKey FIDO Server (SKFS) is an open-source FIDO Certified server for passwordless strong authentication in web and mobile applications.
Protocols: SKFS supports FIDO2 and U2F authentication with FIDO Certified authenticators.
Authenticator choice: The product page says users can use existing FIDO-compatible devices and that StrongKey natively supports Apple and Android platform FIDO keys.
Deployment: StrongKey describes on-premises and hosted data-center deployment, with high availability, disaster recovery, clustering, and replication built in.
SSO: SKFS provides SSO capability and can issue SAML assertions or use JWT tokens to authorize authenticated users.
Integrations: StrongKey lists out-of-the-box integration with Citrix ADC and Citrix Gateway, plus LDAP or Active Directory and PKI integration.
APIs: Web and mobile applications can integrate with SKFS through REST or SOAP web services.
Security hardware: The Tellaro appliance includes a FIPS 140-2 Level 2 validated TPM, with an optional HSM configuration for FIPS 140-2 Level 3 compliance.
Policy and transaction features: SKFS includes a policy module and supports transaction confirmation for digitally signed business transactions on Android devices.
Intended users: StrongKey describes its support and customized services as serving enterprise and SMB customers, and its product page highlights developer integration resources.
Installation requirement: The documented standalone installation calls for Rocky Linux 9.3, OpenJDK 21, at least 20 GB disk space, 4 GB memory, and a public fully qualified domain name.
Price from: Free

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Where it ranks on The Geeks Club

Best Biometric Authentication Software in 2026#4 of 45

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Sources

strongkey.com/products/software/fido-strong-authentic· checked 30 Sept 2026
docs.strongkey.com/index.php/skfs-v3· checked 30 Sept 2026
strongkey.com/products/software/sfks-integrations· checked 30 Sept 2026
docs.strongkey.com/index.php/skfs-v3/skfs-installation/skf· checked 30 Sept 2026