Two-Factor Authenticator App you dream about.

• 100% free and fully open-sourced.
• Autofill codes with Safari Extension.
• Optional passcode or biometrics authentication inside the app.
• Optional iCloud Sync additionally encrypted with a user-provided passphrase.
• Works both on iPhone and iPad.
• Multitasking support on iPad (Slide Over and Split View).
• Fully supports Dynamic Type.
• Supports iOS 13 Dark Mode.
• Insanely performance-optimized and built with security in mind.

• Supports for time-based (TOTP) and counter-based (HOTP) code generation.
• Adding codes by otpauth:// URL scheme.
• 2FAuth never sends your data anywhere unless you use iCloud Sync.
• Supports iOS 11 or later.

• Apple Watch App

1. Clone the repo git clone https://github.com/2FAuth/2FAuth-iOS.git
2. Fetch submodules git submodule update --init
3. Open TwoFAuth.xcodeproj

• Xcode 11
• iOS 11 or later

Your data never leaves your devices. If you enable iCloud Sync data will be transmitted to your private iCloud Database via CloudKit framework encrypted with AES256.

2FAuth uses NTP protocol to get the current secure time . Feel free to use any traffic monitor (e.g., Charles) to check it yourself.

All website favicons are bundled in the app. There's a standalone internal tool that uses https://twofactorauth.org database to fetch all websites supporting 2FA.

See PrivacyPolicy.txt

This app would not have been possible without an awesome OneTimePassword library from Matt Rubin.

2FAuth is available under the MIT license. See the LICENSE file for more info.