Needs Better Documentation
Very confusing to use
Free
In-App Purchases
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About
This app generates Time-Based One-Time Passwords (TOTPs) to enhance online account security through two-factor authentication. It offers cross-platform syncing, a self-hostable backend, and an intuitive interface for managing your security codes.
✓Generates Time-Based One-Time Passwords (TOTPs)
✓Enhances online account security with 2FA
✓Cross-platform token syncing
✓Self-hostable backend option
✓Fast and easy-to-use interface
✓Open-source and free for local use
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What's New in Open Authenticator by Skyost
v2.1.0
June 30, 2026
• Optimized some network calls. • Updated dependencies. • Various bugs fixed.
MoreSubscription plans
Contributor Plan: Annual
Annual subscription to the Contributor Plan
$9.991 Year
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FAQ
What is Open Authenticator?
Open Authenticator is an open-source application that generates Time-Based One-Time Passwords (TOTPs). These codes are used as a second factor in the two-factor authentication (2FA) process to significantly enhance the security of your online accounts.
Is Open Authenticator free to use?
Yes, Open Authenticator is open-source and free for local use. The developers believe that if it doesn't cost them to provide, it shouldn't cost users either.
Can I sync my TOTP tokens across devices with Open Authenticator?
Yes, Open Authenticator offers cross-platform compatibility, allowing you to seamlessly sync your TOTP tokens across all your devices, including iOS and macOS.
Does Open Authenticator have a self-hostable backend?
Yes, Open Authenticator provides the option to self-host the backend on your own server, giving you full control over your data.
How secure is Open Authenticator?
Open Authenticator enhances your online security by generating TOTPs for 2FA, protecting your accounts from unauthorized access. Its open-source nature also promotes transparency in its security practices.
What platforms does Open Authenticator support?
Open Authenticator is supported on macOS, iPhone, iPad, and iPod, ensuring broad compatibility across Apple devices.
What are the subscription plans for Open Authenticator?
Open Authenticator offers a 'Contributor Plan' with monthly and annual subscription options. The monthly plan costs $0.99, and the annual plan is $9.99.
How often is Open Authenticator updated?
The app was last updated on May 1st, 2026, indicating a commitment to ongoing development and improvements. The latest version is v2.0.2.
