Comparison of OTP applications
The following is a general comparison of OTP applications that are used to generate one-time passwords for two-factor authentication (2FA) systems using the time-based one-time password (TOTP) or the HMAC-based one-time password (HOTP) algorithms.
Authenticated implementations
| Implementation | Description | Online sync. | Operating system | Non-default | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Windows | Mac | Linux | iOS | Android | Value length, d | Hash, H | Interval, TX | Epoch, T0 | Steam | |||
| Aegis Authenticator | Free and open source app for Android to manage your 2-step verification tokens.[1] | Automatic backup to a location of your choosing | No | No | No | No | Yes | Yes | Yes | Yes | No | Yes |
| Bitwarden | Open Source Cross platform password manager. 2FA is a premium feature.[2] | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Unknown | Yes[3] |
| SAASPASS Authenticator [4] | Cross-platform 2FA Authenticator with TOTP & HOTP generator with sharing capabilities and password manager integration. Multiple device support, Mobile app and web access with multiple backup capabilities. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Google Authenticator | Yes | No | No | No | Yes | Yes | No | No | No | No | No | |
| Microsoft Authenticator | Yes | Yes | Yes | No | Yes | Yes | No | No | No | No | No | |
| 1Password | Cross-platform password manager[5] | Yes | Yes | Yes | Yes | Yes | Yes | No | Unknown | Unknown | Unknown | Unknown |
| Authy | By Twilio, from 2015, originally Authy.[6] Also available for Chrome. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No | No | No |
| Enpass[7] | Password manager by Sinew Software Systems. Syncs over multiple back-ends. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Unknown | No |
| FreeOTP[8] | Maintained by RedHat, and based on Google Authenticator. | No | No | No | No | Yes | Yes | Yes | Yes | Yes | No | No |
oathtool[9] |
Command-line tool for generating OTP tokens. | No | No | No | Yes | No | No | Yes | Yes | Yes | Yes | Unknown |
| privacyIDEA Authenticator[10] | For use with privacyIDEA Authentication Server, with a secure enrollment process. | No | No | No | No | Yes | Yes | Yes | Yes | Yes | No | Unknown |
| andOTP[11] (unmaintained)[12] | Open-source app for Android 4.4+. Compatible with Google Authenticator. | No | No | No | No | No | Yes | No | No | Yes | No | No |
| Invantive Authenticator[13] | Focuses on integration with Invantive Keychain. | No | Yes | No | No | No | No | Yes | Yes | Yes | Yes | No |
| LastPass Authenticator[14] | Cross-platform OTP for mobile devices with support for online backup. | Yes | No | No | No | Yes | Yes | No | No | No | No | No |
| TOTP.APP[15] | Web-based authenticator not requiring registration. | No | Yes | Yes | Yes | Yes | Yes | No | No | No | No | No |
| Yubico Authenticator for Desktop[16] | By Yubico, for use with Yubikeys. | No | Yes | Yes | Yes | — | — | Yes | Yes | Yes | No | No |
| Yubico Authenticator for Mobile | — | — | — | Yes | Yes | |||||||
| KeePassXC[17] | Password manager | Through user setup with Syncthing,[18] or only within the KeeWeb[19] online web App[20] | Yes | Yes | Yes | No | KeePassDX[21] | Yes | Yes | Yes | No | Yes |
| 2FAS[22] | Popular, feature rich open-source two-factor authenticator. No account required. | Online backup/sync via iCloud or Google Drive | Through browser extension connected to mobile app | Yes | Yes | Yes | Yes | Yes | No | No | ||
| 2FAuth[23] | An open-source PHP web based self-hosted OTP generator, designed for both mobile and desktop. | Yes, web based | Yes | Yes | Yes | No | Yes | |||||
References
- "Aegis Authenticator - Secure 2FA app for Android". Aegis Authenticator. Retrieved 29 April 2023.
- "Pricing for Individuals and Families | Bitwarden". Bitwarden. Retrieved 23 March 2023.
- "Steam Guard TOTPs". Bitwarden. Retrieved 23 March 2023.
- "The 5 Best Two-Factor Authentication Apps for iPhone & Android". Gadget Hacks. Retrieved 28 February 2020.
- "Use 1Password as an authenticator for sites with two-factor authentication". 1Password. Retrieved 7 September 2018.
- Lardinois, Frederic (24 February 2015). "Twilio Acquires Two-Factor Authentication Service Authy". TechCrunch. Retrieved 5 March 2018.
- "Best password manager for iOS, Android, Windows, Linux, Mac | Enpass". www.enpass.io. Retrieved 7 September 2018.
- "FreeOTP". freeotp.github.io.
- "OATH Toolkit". www.nongnu.org. Retrieved 7 September 2018.
- "privacyIDEA Authenticator". GitHub. Retrieved 7 September 2018.
- "andOTP/andOTP". GitHub.
- flocke. "[Unmaintained][App][4.4+][Open source] andOTP - Open source two-factor authentication for Android". XDA Forums. Retrieved 12 March 2023.
- B.V., Invantive Software. "Invantive Authenticator". two-step-verification.solutions. Retrieved 7 September 2018.
- "LastPass - LastPass Authenticator". lastpass.com. Retrieved 7 September 2018.
- "Online one-time password generator / TOTP (Google Authenticator) Online". totp.app. Retrieved 7 September 2018.
- "Using Your YubiKey with Authenticator Codes : Yubico Support". support.yubico.com.
- Team, KeePassXC. "KeePassXC 2.2.0 released - KeePassXC". keepassxc.org.
- "KeePassXC + KeePassDX (Android) Sync guide. A complete starting guide for new users". reddit.com. Retrieved 7 July 2023.
- "Free Password Manager Compatible with KeePass: KeeWeb". keeweb.info. Retrieved 7 July 2023.
- "KeeWeb". keeweb.info. Retrieved 7 July 2023.
- "KeePassDX". keepassdx.com. Retrieved 7 July 2023.
- "2FA Authenticator App (2FAS)". 2FAS. Retrieved 12 March 2023.
- "GitHub - Bubka/2FAuth: A Web app to manage your Two-Factor Authentication (2FA) accounts and generate their security codes". GitHub. Bubka. Retrieved 19 March 2023.
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