FreeOTP

FreeOTP is a free and open-source authenticator by RedHat. It implements multi-factor authentication using HOTP and TOTP. Tokens can be added by scanning a QR code or by manually entering the token configuration. It is licensed under the Apache 2.0 license, and supports Android and iOS.^[4][5][6]

FreeOTP

Screenshot
Developer(s)	Red Hat
Initial release	October 24, 2013; 11 years ago (2013-10-24)[1]
Stable release	Android 2.0.5[2]  / 16 January 2025 iOS 2.3.5[3]  / 20 May 2024
Repository	github.com/freeotp
Written in	Java, Swift
Operating system	Android, iOS
Standard(s)	HOTP, TOTP
Type	One-time password software
License	Apache License 2.0
Website	freeotp.github.io

See also

• Comparison of OTP applications
• Google Authenticator