A free, secure and open source app for Android
iOS client for Proton Authenticator
Source code for 2FAS Auth Android app
Yubico Authenticator for Desktop and Android
Source code for 2FAS Auth iOS app
Official Android implementation of a modern two-factor authentication
Der offizielle eID-Client des Bundes
A Java-based LDAP API
FIDO® Certified StrongKey FIDO Server (SKFS)
Open source two-factor authentication for Android
Forget passwords, use a fingerprint scanner or facial recognition
Token-based AngularJS authentication