Secure your online accounts with this open-source two-factor authentication app. It supports TOTP and offers multiple convenient setup and export options, all while remaining completely offline and private.
1.6.1
May 11, 2026
Bug fixes, compatibility enhancements, and performance improvements.
Authenticator is an open-source application that provides two-factor authentication using the Time-based One-Time Password (TOTP) algorithm. It helps secure your online accounts by generating time-sensitive codes.
You can set up accounts by scanning a QR code, reading from a QR code image, importing from a file, or through manual entry. The app offers a beautiful 'Account Details' page for each entry.
Yes, Authenticator provides several easy ways to export your account keys, including as key URIs to the clipboard, plain text, a TXT file, or as QR Code images.
No, Authenticator always remains offline and never connects to any networks. It does not track any data or collect any personal information, ensuring your privacy.
Authenticator is available for Mac, iPhone, iPad, and iPod. It is designed to work seamlessly across these Apple devices.
Authenticator is a paid application priced at $0.99. This one-time purchase grants you access to all its features.
Yes, Authenticator is fully open source and its code is available on GitHub. This transparency allows users to review its security and functionality.
The latest version of Authenticator is 1.6.0, last updated on September 16, 2025. Updates typically include improvements and new features for enhanced security and usability.
