freeOTP — an open source solution for authentication soft tokens freeOTP is a soft token authenticator that can be used for two-factor authentication, and is available as a free Android app or iOS app. Two-factor authentication — requiring a user to have “something you have”, as well as “something you know” i.e. a password — is being supported on many more services these days. Popular ways to imp
![freeOTP - an open source solution for authentication soft tokens - Fedora Magazine](https://cdn-ak-scissors.b.st-hatena.com/image/square/21418ab458f6a92a9b3cadbfd93a7704b24d0f7a/height=288;version=1;width=512/https%3A%2F%2Ffedoramagazine.org%2Fwp-content%2Fuploads%2F2014%2F06%2Ffreeotp.jpg)