Etopa is a two-factor-authentication app, which runs as a web server and can be accessed using a web browser or using an Android app. You can use the Etopa.de instance or host your own.
Cost / License
- Free
- Open Source
Platforms
- Online
- Android
OTP Auth Alternatives
OTP Auth has been discontinued. Similar apps include Bitwarden, which is open source with a free version. Other options are Aegis Authenticator, Proton Authenticator, Ente Auth and Bitwarden Authenticator. Authenticators like OTP Auth are a crowded field, with more than 50 alternatives for iPhone, Android, iPad, Mac and Windows.
Alternatives list
Infomaniak Auth is a free mobile application that improves and simplifies the security of Infomaniak accounts protected by two-factor authentication.
Cost / License
- Free
- Proprietary
Platforms
- Android
- iPhone
Switzerland
Allthenticator unifies digital and physical access with one smartphone-based identity. Users log in to systems and unlock doors via proximity. Supports SSH keys, passkeys, OTP, and peer-based recovery—all managed from a single admin dashboard.
Cost / License
- Free Personal
- Proprietary
Application type
Platforms
- iPhone
- Windows
- Android
- Linux
- Mac
United States
Clockode is a minimal, and offline-only TOTP code generator that stores your authentication secrets in an encrypted local vault, keeping your two-factor codes private and accessible without needing an internet connection.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Linux
- Mac
- Windows
- Flathub
- Flatpak
Cost / License
- Free
- Open Source (GPL-3.0)
Application type
Platforms
- Linux
- Homebrew
- Mac
- Windows
- Rust
CCost / License
- Free
- Open Source (BSD-3-Clause)
Platforms
- Linux
- Go (Programming Language)
2
53 Duo mobile alternativesDuo Mobile works with Duo Security's two-factor authentication service to make logins more secure. The application generates passcodes for login and can receive push notifications for easy, one-tap authentication.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
- United States
Authman helps you manage your 2-step authentication tokens on iOS, Android and desktop, and securely sync them between devices.
Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- iPhone
- iPad
- Android
- Android Tablet
- Mac
- Windows
- United States
Two-factor authentication app for Yandex accounts and also other QR-code based temporary codes for two-factor authentication
Cost / License
- Free
- Proprietary
Application type
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- HUAWEI AppGallery
Russia
Effortlessly share 2FA SMS with your team. This number works with all services, from WhatsApp to ChatGPT, and connects to numerous tools through Zapier or our webhook integration.
Cost / License
- Paid
- Proprietary
Platforms
- Online
CryptoPhoto gives you a fast and safe way to log into your favorite participating web sites while enjoying leading-edge protection against phishing, malware attacks, and scamming.
Cost / License
- Freemium
- Proprietary
Platforms
- Windows
- Android
- Android Tablet
- Self-Hosted
Australia
Secure your Zoho Account with easy-to-use, multi-factor authentication. Because hackers won't give you a second chance.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Mac
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
India
