AuthBook Authenticator 2FA
Offline MFA codes, no account
Free · Designed for iPad. Not verified for macOS.
Codes made on this phone, stored encrypted, and backed up to a vault file only you can open. No account to create. No server holding your codes. Free, no ads.
AuthBook makes your two-factor codes on this phone. There is no AuthBook account to create and no AuthBook server holding your codes, so there is nothing in the middle to lose them, sell them, or be breached for them.
Turn on airplane mode and check. Every code still works.
WHAT IT DOES
- Time-based (TOTP) and counter-based (HOTP) codes, 6 to 8 digits, SHA-1, SHA-256 and SHA-512
- Add an account by scanning its QR code, or type the key in by hand
- Tap a code to copy it. The rule underneath empties as the code runs out, so you can see whether to use this one or wait for the next
- Search the list, or filter by group
- Deleted accounts wait 30 days in Recently Deleted before they are gone
YOUR VAULT IS A FILE YOU OWN
On this phone your accounts are stored encrypted. Set up a vault and they are also kept in one encrypted file that is yours to keep and copy: AES-256-GCM, with a key stretched from your passphrase by PBKDF2-HMAC-SHA256 at 600,000 iterations. The format is documented and versioned, and the header is readable without your passphrase, so you can always tell which vault you are holding before you open it.
We never receive that file. We cannot read it, cannot lose it, and cannot hand it over.
THE RECOVERY KIT
Your passphrase cannot be reset, because there is nobody on the other end to reset it. So AuthBook gives you a Recovery Kit: one printable key, shown once, that opens your vault if the passphrase is gone. Print it and keep it somewhere that is not your phone. You can test it any time: “Test your restore” opens your latest vault file with the passphrase or the Recovery Kit and changes nothing.
MOVING IN, AND OUT AGAIN
Import from another authenticator by scanning its export QR code, pasting a list of otpauth:// links, or opening a supported backup file, plain or password-protected. Then check one code against the real service before you delete anything. Export whenever you want, either as an encrypted backup only you can open or as plain URIs if you are moving on. Leaving should be easy.
LOCKS
Face ID, Touch ID, your iPhone passcode or a PIN, with an auto-lock timer you choose. Codes can stay hidden until you tap them.
WHAT LEAVES THIS PHONE
Your secrets and your codes are never sent to us. If you set up a vault, the encrypted file can travel in your phone’s own backup, or wherever you save a copy, and opens only with your passphrase or Recovery Kit. AuthBook sends diagnostics and crash reports so that bugs get found and fixed; they carry no account names, no secrets and no codes, and you can turn them off in Settings. It also asks two public time servers, time.cloudflare.com and pool.ntp.org, what time it is, so that a wrong phone clock cannot break your codes; the question says nothing about you, and that check can be turned off too. That is the entire list.
Free. No ads. No in-app purchases. No sign-up.
Available in English, Spanish, German, French, Italian, Portuguese, Russian, Indonesian, Korean, Japanese and Chinese.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Pooja Gupta, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Pooja Gupta
- Size
- 38.7 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Copyright
- © ByteCraft Apps