Best C1 Authenticator Apps

235+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated May 2026

Finding the right c1 authenticator app can be overwhelming with so many options. We've analyzed 235+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for C1 Authenticator

2FA Authenticator (2FAS)#2

2FA Authenticator (2FAS) by Two Factor Authentication Service, Inc.

#1 Rated 2FA Authenticator
Strong Contender
📊 Productivity
4.7😊(34K ratings)
Free
2FA Authenticator (2FAS) screenshot 1
2FA Authenticator (2FAS) screenshot 2
2FA Authenticator (2FAS) screenshot 3
2FA Authenticator (2FAS) screenshot 4
2FA Authenticator (2FAS) screenshot 5
2FA Authenticator (2FAS) screenshot 6

A secure two-factor authentication app that generates codes for additional account security. Protect your online accounts with an extra layer of verification.

What We Love

  • 🚀 Efficient and fast
  • 🔒 Secure and private
  • 👍 Simple and intuitive UI
  • 💡 Customizable icons and folders

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔒 Lack of password/PIN protection
  • 🕰 No Apple Watch app
Authenticator ·#3

Authenticator · by SMM service, s.r.o.

2FA, Two Factor Authentication
Worth Considering
🔧 Utilities
4.6😞(26K ratings)
FreeAdsIn-App Purchases
#34in Utilities
Authenticator · screenshot 1
Authenticator · screenshot 2
Authenticator · screenshot 3
Authenticator · screenshot 4
Authenticator · screenshot 5

Secure your online accounts with Authenticator 7, an app that stores and generates secure 2FA tokens for added account protection. Safeguard your accounts from hackers with this easy-to-use two-factor authentication solution.

What We Love

  • 💡 Helpful for 2FA
  • 👍 Easy to navigate
  • 🚀 Efficient authentication

Room to Improve

  • 🐛 Inconsistent performance
  • 💰 Subscription-based model
  • 🔒 Concerns about security and privacy

More C1 Authenticator apps to explore

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

A secure app for easy online account sign-ins, offering multi-factor authentication, passwordless login, and password autofill features. Manage Microsoft and non-Microsoft accounts with added security layers like fingerprint, face ID, or PIN. Stay protected and simplify access to various online services.

📊 Productivity
(655K)
5
Google Authenticator
Google Authenticator
Google Authenticator
by Google
Free

A secure two-step verification app that generates codes for logging into online accounts, adding an extra layer of security beyond passwords. Easily sync codes across devices, set up accounts with QR codes, and manage multiple accounts in one place. To start securing your accounts, enable 2-Step Verification on your Google Account.

🔧 Utilities
(1M)
6
OneSpan Mobile Authenticator
OneSpan Mobile Authenticator
OneSpan Mobile Authenticator
by OneSpan International GmbH
Free

A mobile authenticator application designed for quick log-ins with customizable authentication methods like PIN, push, or biometrics. It offers secure activation through self-service and advanced mobile app shielding technology. Visit www.onespan.com/solutions/frictionless-authentication for more details.

💰 Finance
(1.4K)
7
Salesforce Authenticator
Salesforce Authenticator
Salesforce Authenticator
by salesforce.com
Free

A mobile app that enhances online account security through multi-factor authentication, using push notifications for quick approval or denial of account activities. It also offers one-time verification codes for offline use and can utilize location services for automatic approvals. Secure your accounts that support time-based one-time passwords with this convenient tool.

💼 Business
(4.1K)
8
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
RSA Authenticator (SecurID)
by RSA Security
Free

This app provides strong authentication through OTP credentials, cloud-based MFA, push notifications, and biometrics for enhanced security. It is suitable for iOS and macOS users looking for a secure and convenient authentication solution. Check the App Store for more information.

💼 Business
(319)
9
ID.me Authenticator
ID.me Authenticator
ID.me Authenticator
by ID.me, Inc.
Free

A free multi-factor authentication app that adds an extra layer of security to your account with time-based one-time passwords, push notifications, and mobile security keys. Easily verify your identity and protect your account from hackers.

📊 Productivity
(100K)
10
Authenticator
Authenticator
Authenticator
Simple 2-factor authentication
Free

"Enhance your online security with a simple, free, and open-source two-factor authentication app. Easily generate unique one-time passwords for your accounts using secure encryption methods, offline capabilities, and support for various password formats. Protect your accounts now!"

🔧 Utilities
(407)
11
Authenticator App ™
Authenticator App ™
Authenticator App ™
Two Factor Authentication
Free

Secure your online accounts with an advanced two-factor authentication app that generates time-based codes for enhanced security when logging in. Compatible with over 2,500 websites, streamline your multi-factor authentication setup by scanning QR codes.

🔧 Utilities
(21K)
12
Authenticator App+
Authenticator App+
Authenticator App+
2FA Two Factor Authentication
Free

Secure all your online accounts with our Authenticator App. Easily scan, generate, and save 2FA codes for enhanced security. Download now for peace of mind online!

📊 Productivity
(12K)
13
Authenticator ©
Authenticator ©
Authenticator ©
Authenticator app, 2fa
Free

Protect your online accounts with our secure Two-Factor Authentication app. Easily add accounts by scanning QR codes or entering them manually, and manage passwords with our password management feature. Secure your accounts today!

💼 Business
(2.3K)
14
Authenticator App - Authkey
Authenticator App - Authkey
Authenticator App - Authkey
Two factor authentication, 2fa
Free

A comprehensive 2FA app designed to enhance online security by generating unique access codes for account protection, ensuring the safety of personal information. Secure your accounts easily and reliably with our advanced security protocols.

🔧 Utilities
(3.3K)
15
Authenticator ℠ App
Authenticator ℠ App
Authenticator ℠ App
2FA, Two Factor Authentication
Free
🔧 Utilities
(3.9K)
16
Authenticator App  #1
Authenticator App  #1
Authenticator App #1
Sign In to All Your Accounts
Free

A lightning-fast 2FA authentication app with QR scanning capabilities and smart features for secure logins. Simplify your authentication process with our user-friendly design.

🔧 Utilities
(1.3K)
17
Authenticator App · 2FA
Authenticator App · 2FA
Authenticator App · 2FA
2FA: Two Factor Authentication
Free

An ultra-secure 2FA app for safeguarding online accounts with TOTP generation and account synchronization across devices. Protect your accounts and streamline 2FA codes management with ease.

🔧 Utilities
(343)
18
Authy Authenticator
Authy Authenticator
Authy Authenticator
2FA Authentication MFA & OTP
Free

This application provides a secure and convenient way to manage Two-Factor Authentication (2FA) codes for multiple online accounts, generating time-based one-time passwords to prevent unauthorized access. With features like iCloud backup, Apple Watch support, and multi-device sync, users can easily and reliably protect their accounts.

📊 Productivity
(12)
19
Authenticator App†
Authenticator App†
Authenticator App†
2FA Authentication MFA OTP
Free

This application provides secure two-factor authentication for enhanced account protection. Easily set up and manage verification codes for your accounts with this powerful tool. Download now for enhanced security!

🔧 Utilities
(1.8K)
20
Authenticator App ®
Authenticator App ®
Authenticator App ®
Authenticator for Google
Free

Secure your accounts with our authentication app that adds an extra layer of protection using two-factor and multi-factor authentication. Keep your online accounts safe and secure by enabling this feature today!

📊 Productivity
(235)