Best Doosan Authenticator Apps

249+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated August 2026

Out of 249+ doosan authenticator apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Doosan Authenticator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Doosan AuthenticatorDoosan AuthenticatorFreeβ€”NoNoMay 2026
2Duo MobileDuo MobileFree4.9β˜… (2.2M)NoNoAug 2026
3Microsoft AuthenticatorMicrosoft AuthenticatorFree4.7β˜… (677K)NoNoAug 2026
4Google AuthenticatorGoogle AuthenticatorFree4.9β˜… (1.1M)NoNoAug 2026
5ID.me AuthenticatorID.me AuthenticatorFree4.3β˜… (100K)NoNoAug 2026
6Salesforce AuthenticatorSalesforce AuthenticatorFree4.6β˜… (4.3K)NoNoAug 2026
7Oracle Mobile AuthenticatorOracle Mobile AuthenticatorFree2.6β˜… (90)NoNoAug 2026
8Authenticator App β€€Authenticator App β€€Freeβ€”YesYesJul 2026

Top Picks for Doosan Authenticator

Duo Mobile#2

Duo Mobile by Duo Security LLC

Security made simple
Strong Contender
πŸ’Ό Business
4.9😐(2.2M ratings)
Free
#18in 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

  • πŸ‘ Simple and easy to use
  • πŸ”’ Provides an extra layer of security
  • πŸš€ Quick and convenient authentication
  • πŸ”’ Secure login experience

Room to Improve

  • πŸ› Unreliable notifications and push functionality
  • πŸ› Compatibility issues when changing devices
  • πŸ› Slow and frustrating authentication process
Microsoft Authenticator#3

Microsoft Authenticator by Microsoft Corporation

Protects your online identity
Worth Considering
πŸ“Š Productivity
4.7😞(677K ratings)
Free
#10in Productivity
Microsoft Authenticator screenshot 1
Microsoft Authenticator screenshot 2
Microsoft Authenticator screenshot 3
Microsoft Authenticator screenshot 4
Microsoft Authenticator screenshot 5
Microsoft Authenticator screenshot 6

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.

What We Love

  • πŸš€ Seamless authentication
  • πŸ”’ Secure login process
  • πŸ‘ Convenient passwordless sign-in
  • πŸš€ Smooth app performance

Room to Improve

  • πŸ› Broken Apple Watch functionality
  • πŸ› Backup and restore issues
  • πŸ› Confusing login flow

More Doosan Authenticator apps to explore

4
Google Authenticator
Google Authenticator
Google Authenticator
by Google
Free

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.

Offline code generationSync codes across devicesAutomatic QR code setup
πŸ”§ Utilities
(1.1M)
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
πŸ“Š 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
πŸ’Ό Business
(4.3K)
free
7
Oracle Mobile Authenticator
Oracle Mobile Authenticator
Oracle Mobile Authenticator
by Oracle America, Inc.
Free

Securely verify your identity with your mobile device. This app generates one-time passcodes for logins or sends push notifications for approval, adding a vital layer of security to online applications beyond standard username and password.

Generate one-time passwords offlinePush notification approvalApp protection with Touch ID or PIN
πŸ’Ό Business
(90)
free
8
Authenticator App β€€
Authenticator App β€€
Authenticator App β€€
Authentication App, 2FA, MFA
Free
πŸ“Š Productivity
(0)
9
Authenticator App - 2FA / OTP
Authenticator App - 2FA / OTP
Authenticator App - 2FA / OTP
Two-Factor Login & Secure MFA
Free

This app provides secure two-factor authentication (2FA) and multi-factor authentication (MFA) by generating time-based one-time passwords (TOTP) for online accounts. It offers encrypted backups, cloud sync, and QR code support for easy account management across multiple devices.

Secure 2FA/MFA code generationEncrypted backup and cloud syncQR code account addition
πŸ“Š Productivity
(0)
free with in-app purchases
10
Okta Verify
Okta Verify
Okta Verify
by Okta, Inc.
Free

This app provides a secure way to verify your identity for account access. It offers two-factor authentication through temporary codes or push notifications. The app prioritizes privacy, only requesting camera access for initial device registration.

Two-step verificationGenerate 6-digit codesApprove sign-in requests via push notification
πŸ’Ό Business
(37K)
free
11
BAuthenticator
BAuthenticator
BAuthenticator
by Beijing Ji'an Technology Co., Ltd
Free

This app provides a secure and convenient way to manage your two-factor authentication codes. It supports both manual entry of 16-digit keys and scanning QR codes for easy setup.

Supports 16-digit key entryQR code scanning for setupTwo-factor authentication management
πŸ”§ Utilities
(43)
free
12
DB Secure Authenticator
DB Secure Authenticator
DB Secure Authenticator
by Deutsche Bank AG
Free

This app offers a secure two-factor authentication solution for logging into accounts and authorizing transactions. It provides multiple methods for generating codes, including scanning QR codes, creating one-time passwords, and challenge/response for customer service verification. It also supports push notifications for transaction authorization.

Two-factor authenticationQR code scanningOne-time password generation
πŸ’° Finance
(24)
free
13
Authenticator Duo - Two Factor
Authenticator Duo - Two Factor
Authenticator Duo - Two Factor
MFA Authentication & 2Fa Authy
Free

This app provides robust two-factor authentication to secure your online accounts. It offers easy setup, management, and backup/sync features using advanced security protocols for peace of mind.

Two-Factor Authentication (2FA)Easy Setup & ManagementBackup & Sync
πŸ”§ Utilities
(7)
subscription
14
authenticator . app
authenticator . app
authenticator . app
authentication app
Free

This app generates and saves two-factor and multi-factor authentication codes for various online services. It offers secure, encrypted backups and syncing across devices, ensuring your account security is maintained even if you lose your device. It works offline and supports multiple platforms.

Generate and save 2FA/MFA codesScan QR codes or enter manuallyEncrypted iCloud backup
πŸ’Ό Business
(472)
free
15
My Authenticator
My Authenticator
My Authenticator
by Igor Nikolaev
Free
πŸ”§ Utilities
(0)
16
Authenticator App -Secure
Authenticator App -Secure
Authenticator App -Secure
MFA & 2FA, OTP Entry Creator
Free

Secure your digital life with this advanced security utility. It offers tools for instant account setup, password management, and offline code generation for safe and private logins. Features include encryption, cloud sync, and auto-fill for a streamlined experience.

QR scanner for instant account setupPassword manager and secure vaultBackup code storage
πŸ”§ Utilities
(9)
subscription
17
SecurEnvoy Authenticator
SecurEnvoy Authenticator
SecurEnvoy Authenticator
More Control, More Secure
Free

This app provides a secure two-factor authentication method with easy enrollment and approval via biometrics, facial recognition, or PIN. It supports third-party applications and web services, automatically managing time zone changes and offering enhanced security features.

Two-factor authenticationBiometric/Facial recognition/PIN approvalSeamless user enrollment
πŸ’Ό Business
(8)
free
18
Authenticator - OTP Security
Authenticator - OTP Security
Authenticator - OTP Security
Multi-Factor Authentication
Free

This app provides two-factor authentication (2FA) to secure your online accounts. It allows for quick setup, organization, and backup of your verification codes and passwords across devices. Enhance your digital security with this essential tool.

Two-Factor Authentication (2FA)Quick account setup and organizationBackup and sync across devices
πŸ”§ Utilities
(1)
free with in-app purchases
19
FIS Authenticator
FIS Authenticator
FIS Authenticator
by eFunds Corporation
Free

This app provides a secure second-factor authentication solution for users of FIS' Infinity IdP identity management service. It acts as a mobile companion to enhance account security.

Second-factor authenticationIdentity management companionEnhanced account security
πŸ”§ Utilities
(197)
free
20
Authenticator App βˆ™
Authenticator App βˆ™
Authenticator App βˆ™
2FA Authentication App, MFA
Free

Enhance your digital security with this app, offering encrypted 2FA codes, privacy analysis, and threat detection. Secure accounts, manage app data access, and protect sensitive files with robust encryption and local storage.

Encrypted 2FA code generationSmart privacy report analysisFile vault for encrypted media and documents
πŸ“Š Productivity
(1)
free with in-app purchases

FAQ about Doosan Authenticator

Are there free doosan authenticator apps for iPhone?
Yes β€” 20 of the top doosan authenticator apps we rank are free to download, including Doosan Authenticator and Duo Mobile.
Doosan Authenticator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ doosan authenticator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.