2FA Key — OTP Authenticator

Utilities

Free · In‑App Purchases

2FA Key is a fast, private two-factor authenticator for iPhone, iPad, Mac, and Apple Watch. Generate time-based one-time passwords (TOTP) on your devices, even offline. Add accounts by scanning a QR code, importing a QR image, or entering details manually. See the code first with a clear countdown, tap or click to copy, search instantly, and organize accounts into editable groups. Optional iCloud Keychain sync keeps your accounts available across your Apple devices. The app supports English, Simplified Chinese, Traditional Chinese, Japanese, Korean, German, French, and Spanish, with automatic system language detection and a manual language setting. App Lock uses your device authentication to protect your codes. The free version supports one account. A one-time purchase unlocks unlimited accounts forever. There is no subscription.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

The developer, 国城 唐, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    国城 唐
    Size
    10.5 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    • Apple Watch
      Requires watchOS 10.0 or later.
    Languages
    English and 7 more
    • English, French, German, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Guocheng Tang
  • Developer Website
  • Privacy Policy