Authenticator
mattrubin.me/authenticatoriOS
Simple, native, open source 2-FA Client for iOS, which never connects to the internet - built by @mattrubin.me
Authenticator Source Code
Author
Description
Two-Factor Authentication Client for iOS
Homepage
https://mattrubin.me/authenticatorRepository
- LicenseOther
- Created28 Aug 13
- Primary languageSwift
- Size60,085 KB
- Stars874
- Forks117
- Watchers874
Top Contributors
@mattrubin (2354)
@beaucollins (64)
@adhintz (7)
@dependabot[bot] (5)
@Schweinepriester (1)
@kruton (1)
Recent Commits
Merge pull request #475 from mattrubin/maintenance Bump iOS deployment target to 16.0
[ci] Temporarily disable Codecov uploading
[ci] Migrate from `xcversion` to `xcodes`
[ci] Disable failing script for printing bundled runtimes > Bundled runtimes: > Xcode_16.0.0.app > 2026-04-10 17:19:55.567 defaults[4268:16280] > The domain/default pair of (/Applications/Xcode_16.0.0.app/Contents/Developer/Platforms/*.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/*.simruntime/Contents/Info.plist, CFBundleName) does not exist > Error: Process completed with exit code 1.
[ci] Allow other test jobs to complete even if one fails
[ci] Modernize GitHub Actions testing workflow - Run jobs on MacOS 15 - Update test matrix to use modern Xcode and iOS versions - Use latest versions of GitHub Actions dependencies
Migrate off of deprecated `UTType` constant "'kUTTypeUTF8PlainText' was deprecated in iOS 15.0: Use UTTypeUTF8PlainText or UTType.utf8PlainText (swift) instead."
Bump iOS deployment target to 16.0
Upgrade fastlane tools
Merge pull request #466 from mattrubin/2026 Modernize tooling and project configuration
Revert versioning scheme change
Update Swiftlint config to be opt-out rather than opt-in
Delete unused imports flagged by `swiftlint analyze`
Prefer `XCTAssertEqual` and `XCTAssertNotEqual` over `XCTAssert` When tests fail, the more specific matchers provide better error messages.
Update screenshots for new screen sizes: - Update fastlane snapshot config with new devices - Remove SimulatorStatusMagic, which doesn't work as easily on newer simulators - Configure fastlane snapshot to make the status bar pretty - Annotate screenshot test case with `@MainActor` as required by the snapshot helper function A few issues I ran into: - The iOS simulator inherits the 12/24-hour time format preference from the macOS host *at the time the simulator is created* and does not expose a way to change this setting via either the Settings app or an `xcrun simctl` command. The fix was to manually run `plutil -remove AppleICUForce24HourTime ~/Library/Developer/CoreSimulator/Devices/[Simulator UUID]/data/Library/Preferences/.GlobalPreferences.plist` for each simulator before running fastlane snapshot. - There are imperceptible differences between screenshots rendered when my MBP is running on battery power vs running off a power adapter. I opted to capture screenshots when connected to power. - The (in)visibility of the home indicator at the bottom of each screenshot is flaky. Most screenshots don't include it, but I had to re-generate several of them to get them all without home indicators.
Upgrade project format to Xcode 16.3+
Use non-optional `Data(_:)` initializer to convert `String` to `Data`
Temporarily disable `xct_specific_matcher` SwiftLint rule
Fix SwiftLint build script configuration
Disable Liquid Glass with `UIDesignRequiresCompatibility`
Update to recommended Xcode project settings
Update fastlane snapshot helper
Upgrade Carthage dependencies
Pin Ruby version and upgrade fastlane
Merge pull request #407 from mattrubin/modernize Update project for modern Xcode, Swift, and iOS
Update copyright notice dates
Remove direct initialization of empty NSErrors in tests
Fix `UITableViewAlertForLayoutOutsideViewHierarchy` warnings in tests
Fix a comment typo
[CI] Fix collection of code coverage info
Authenticator Website
Website
Authenticator • Two-Factor Authentication Client for iOS
Redirects
Redirects to https://mattrubin.me/authenticator/
Security Checks
All 65 security checks passed
Server Details
- IP Address172.66.47.43
- LocationSan Francisco,California,United States of America,NA
- ISPCloudFlare Inc.
- ASNAS13335
Associated Countries
US
Safety Score
Website marked as safe
100%
Blacklist Check
mattrubin.me was found on 0 blacklists
- AntiSocial Blacklist
- Artists Against 419
- Badbitcoin
- Bambenek Consulting
- CERT Polska
- CoinBlockerLists
- CRDF
- CryptoScamDB
- EtherAddressLookup
- EtherScamDB
- Fake Website Buster
- MetaMask EthPhishing
- NABP Not Recommended Sites
- OpenPhish
- PetScams
- PhishFeed
- PhishFort
- Phishing.Database
- PhishStats
- PhishTank
- Phishunt
- RPiList Not Serious
- Scam.Directory
- SecureReload Phishing List
- Spam404
- StopGunScams
- Suspicious Hosting IP
- ThreatFox
- ThreatLog
- TweetFeed
- URLhaus
- ViriBack C2 Tracker
Website Preview
Authenticator iOS App
App Info
Authenticator
Authenticator is a simple, free, and open source two-factor authentication app. It helps keep your online accounts secure by generating unique one-time passwords, which you use in combination with your other passwords to log into supporting websites. The simple combination of the password in your head and the rotating passwords generated by the app make it much harder for anyone but you to access your accounts. • Easy: Simple setup via QR code, "otpauth://" URL, or manual entry • Secure: All data is stored in encrypted form on the iOS keychain • Compatible: Full support for time-based and counter-based one-time passwords as standardized in RFC 4226 and 6238 • Off the Grid: The app never connects to the internet, and your secret keys never leave your device.
Rating
Version Info
- Current Version2.1.2
- Last Updated01 Jun 19
- First Released03 Dec 13
- Minimum iOS Version9.0
- Device Models Supported162
App Details
- IPA Size16.13 Mb
- PriceFree (USD)
- Age Advisory4+
- Supported Languages1
- DeveloperMatt Rubin
- Bundle IDme.mattrubin.authenticator
Screenshots
Authenticator Reviews
More 2-Factor Authentication
Free, secure and open source authenticator app for both iOS and Android. Supports creating encrypted backups and syncing between devices without the need for an account.
Free, secure and open source authenticator app for Android. Has a backup/ restore feature and a customisable UI with dark mode
Rust-based OTP authenticator. Has native With GNOME Shell integration. Also available through flathub.
Bitwarden Authenticator is a free and open-source app which stores and generates time-based codes for multi-factor authentication. It can be used with an online account to backup and sync your tokens across your devices (and access them via a web interface) in a secure, end-to-end encrypted fashion. It can also be used offline on a single device with no account necessary.
Chronos Authenticator is a free, open-source two-factor authentication app for iOS, designed to provide robust security and reliable backup options.
Ente Auth is a free and open-source app which stores and generates TOTP tokens. It can be used with an online account to backup and sync your tokens across your devices (and access them via a web interface) in a secure, end-to-end encrypted fashion. It can also be used offline on a single device with no account necessary.
Proton Authenticator is free, open source, and available for both iOS and Android. A Proton account is required to use Proton Authenticator. Existing 2FA codes can be imported from other popular apps such as Google Authenticator and LastPass.
Free and open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app
An easy-to-use, open-source two-factor authentication app designed specifically for iOS
About the Data: Authenticator
Change History
- Amended (iosApp)
Edit Authenticator Data
You can edit Authenticator's entry in this section of awesome-privacy.yml by submitting a PR to our GitHub repo.
Note that some of the information shown above has been aggregated from external
sources, a list of these can be found data documentation.
Origin Data
Modify Data
API
You can access Authenticator's data programmatically via our API. Simply make a GET request to:
https://api.awesome-privacy.xyz/v1/services/authenticatorThe REST API is free, no-auth and CORS-enabled. To learn more, view the API Docs or read the API Usage Guide.
Share Authenticator
Help your friends compare 2-Factor Authentication, and pick privacy-respecting software and services.
Share Authenticator and Awesome Privacy with your network!