Open source implementation of the two-factor authentication HOTP and TOTP schemes. Created by Red Hat FreeOTP is a two-factor authentication application for systems utilizing one-time password protocols with support for Android (3.0 or later) and iOS (7 or later). Tokens can be added easily by scanning a QR-code or by manually entering in the token configuration.FreeOTP implements open standards. This means that no proprietary server-side component is necessary: use any server-side component that implements these standards. We personally recommend FreeIPA, which uses TOTP. However, any standards-compliant implementation will work. Currently, FreeOTP provides implementations of HOTP and TOTP.
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FreeOTP
Alternatives
| # | Image | App Name | Features | Platforms | Price | Website Link |
| 1 |  |
Google Authenticator | Android iPhone Blackberry Wordpress Android Tablet Android Wear iPad |
Free | Website | |
| 2 |  |
Authy | Chrome | Mac Windows Android iPhone Android Tablet iPad |
Free | Website |
| 3 |  |
Authenticator | iPhone | Free | Website | |
| 4 |  |
andOTP | Android Tablet Android |
Free | Website | |
| 5 |  |
Aegis Authenticator | Android | Free | Website | |
| 6 |  |
OTP Auth | iPhone Apple Watch iPad |
Free | Website | |
| 7 |  |
Microsoft Authenticator | Android iPhone Windows Phone iPad |
Free | Website | |
| 8 |  |
LastPass Authenticator | Android iPhone |
Free | Website | |
| 9 |  |
WinAuth | Windows | Free | Website | |
| 10 |  |
Myki |
Web Chrome |
Mac Safari Windows Android iPhone Microsoft Edge iPad Apple Watch Opera Firefox Linux Android Wear Android Tablet |
Freemium | Website |