Best Keyless Authenticator Apps

250+ iOS apps curated and reviewed

4.2 avg rating
20 free apps
Updated August 2026

Keyless Authenticator is the household name in keyless authenticator, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Keyless Authenticator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Keyless AuthenticatorKeyless AuthenticatorFree2.6★ (5)NoNoAug 2026
2Duo MobileDuo MobileFree4.9★ (2.2M)NoNoAug 2026
3Google AuthenticatorGoogle AuthenticatorFree4.9★ (1.2M)NoNoAug 2026
4Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7★ (687K)NoNoAug 2026
5ID.me AuthenticatorID.me AuthenticatorFree4.3★ (100K)NoNoAug 2026
6Salesforce AuthenticatorSalesforce AuthenticatorFree4.6★ (4.3K)NoNoAug 2026
7Inalogy AuthenticatorInalogy AuthenticatorFreeNoNoMay 2026
8Opty - 2FA AuthenticatorOpty - 2FA AuthenticatorFreeNoNoMay 2026

Top Picks for Keyless Authenticator

Duo Mobile#2

Duo Mobile by Duo Security LLC

Security made simple
Strong Contender
💼 Business
4.9😐(2.2M ratings)
Free
#8in Business
Duo Mobile screenshot 1
Duo Mobile screenshot 2
Duo Mobile screenshot 3
Duo Mobile screenshot 4

Enhance login security with two-factor authentication. Generate passcodes or use one-tap push notifications for seamless access to your accounts. Manage authentication for multiple applications and web services.

What We Love

  • 👍 Simple and easy to use
  • 🔒 Provides an extra layer of security
  • 🚀 Quick and convenient authentication
  • 🔒 Secure login experience

Room to Improve

  • 🐛 Unreliable notifications and push functionality
  • 🐛 Compatibility issues when changing devices
  • 🐛 Slow and frustrating authentication process
Google Authenticator#3

Google Authenticator by Google

Worth Considering
🔧 Utilities
4.9😞(1.2M ratings)
Free
#3in Utilities
Google Authenticator screenshot 1
Google Authenticator screenshot 2
Google Authenticator screenshot 3
Google Authenticator screenshot 4
Google Authenticator screenshot 5
Google Authenticator screenshot 6

Enhance your online security with a second verification step for your accounts. Generate codes directly on your phone, even offline, to protect against unauthorized access. Sync codes across devices for easy access and manage multiple accounts securely.

What We Love

  • 👍 User-friendly
  • 🔒 Secure authentication
  • 🚀 Simple and fast
  • 🔒 Reliable security

Room to Improve

  • 🐛 Randomly deleted all codes
  • 🐛 Unreliable, lost access to accounts
  • 🐛 Timing issues, codes didn't work

More Keyless Authenticator apps to explore

4
Microsoft Authenticator
Microsoft Authenticator
Microsoft Authenticator
Protects your online identity
Free

Securely sign into online accounts with multi-factor authentication, passwordless login, or password autofill. Manage multiple accounts, including non-Microsoft services, and access Microsoft products and services seamlessly.

Multi-factor authentication (MFA)Passwordless sign-inPassword autofill
📊 Productivity
(687K)
free
5
ID.me Authenticator
ID.me Authenticator
ID.me Authenticator
by ID.me
Free

This app provides a free multi-factor authentication solution for your account, adding an extra security layer to prevent unauthorized access. It generates secure verification tokens, including time-based codes and push notifications, to confirm your identity during login.

Multi-factor authentication (MFA)Time-based one-time passwords (TOTP)Push notification verification
📊 Productivity
(100K)
free
6
Salesforce Authenticator
Salesforce Authenticator
Salesforce Authenticator
by salesforce.com
Free

Enhance your online security with multi-factor authentication. This app sends push notifications to your device for identity verification, allowing you to approve or deny login attempts with a simple tap. It also offers one-time verification codes for offline use and can automate approvals for trusted locations.

Multi-factor authenticationPush notification approvalsOne-time verification codes
💼 Business
(4.3K)
free
7
Inalogy Authenticator
Inalogy Authenticator
Inalogy Authenticator
Keycloak Push Authenticator
Free
🔧 Utilities
(0)
8
Opty - 2FA Authenticator
Opty - 2FA Authenticator
Opty - 2FA Authenticator
2FA Authenticator & OTP Codes
Free
🔧 Utilities
(0)
9
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
by RSA Security
Free

This app provides multi-factor authentication for enterprises, offering passwordless security through device-bound passkeys. It supports various authentication methods like OTP, biometrics, and push notifications to secure digital access.

Multi-Factor Authentication (MFA)Passwordless Security with PasskeysOne-Time Passcodes (OTP)
💼 Business
(327)
free
10
excelsecu authenticator
excelsecu authenticator
excelsecu authenticator
2FA with eSecuFIDO
Free
📊 Productivity
(0)
11
LinOTP Authenticator
LinOTP Authenticator
LinOTP Authenticator
by KeyIdentity GmbH
Free
🔧 Utilities
(0)
12
Fnopt Authenticator
Fnopt Authenticator
Fnopt Authenticator
Fnopt Authenticator: Fast&Safe
Free
🔧 Utilities
(0)
13
2FA Authenticator - KeyFort
2FA Authenticator - KeyFort
2FA Authenticator - KeyFort
Authenticator + Secure Vault
Free
🔧 Utilities
(0)
14
Contia Authenticator
Contia Authenticator
Contia Authenticator
Two-Factor Authentication
Free
📊 Productivity
(0)
15
CDAC Authenticator
CDAC Authenticator
CDAC Authenticator
by CENTRE FOR DEVELOPMENT OF ADVANCED COMPUTING
Free
🔧 Utilities
(0)
16
Auth Armor Authenticator
Auth Armor Authenticator
Auth Armor Authenticator
Passwordless Authenticator
Free
🔧 Utilities
(0)
17
App Authenicator: Max
App Authenicator: Max
App Authenicator: Max
2FA, MFA, OTP Authenticatir
Free
🔧 Utilities
(0)
18
SafeNet MobilePASS+
SafeNet MobilePASS+
SafeNet MobilePASS+
Thales Group
Free

This app provides secure mobile authentication for accessing cloud apps, VPNs, and other services. It offers one-tap push authentication, secure one-time passcodes, and biometric unlock options for enhanced security and user experience. The app supports quick self-enrollment and can manage multiple authenticators.

One-tap push authenticationSecure one-time passcodes (OTPs)TouchID/FaceID unlock
💼 Business
(115K)
free
19
Tap2 - 2FA Authenticator App
Tap2 - 2FA Authenticator App
Tap2 - 2FA Authenticator App
2FA MFA & OTP Authenticator
Free
📊 Productivity
(0)
20
2FA Authenticator (2FAS)
2FA Authenticator (2FAS)
2FA Authenticator (2FAS)
#1 Rated 2FA Authenticator
Free

Securely log in to your online accounts with two-factor authentication. This app protects your personal data and passwords from cyber threats with a simple, private, and open-source solution. It offers easy token restoration, app protection, and offline functionality.

Two-factor authenticationToken backup and restoreApp protection with passcode/biometrics
📊 Productivity
(35K)
free

FAQ about Keyless Authenticator

What are the best keyless authenticator apps for iPhone?
Keyless Authenticator tops our keyless authenticator apps ranking as of August 2026, with a 2.6-star average from 5 App Store ratings, and it's free to download.
Yes — 20 of the top keyless authenticator apps we rank are free to download, including Keyless Authenticator and Duo Mobile.
Keyless Authenticator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ keyless authenticator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Keyless Authenticator provides a secure and private way to access digital services from any device. It uses a zero-knowledge distributed architecture and biometric verification for multi-factor authentication, eliminating the need to remember or type credentials.
It employs a zero-knowledge distributed architecture, meaning no private information is accessible to the network, preventing data theft or loss. It also includes strong anti-phishing technology to minimize the risk of fraud and user deception.