Comparison

Authenticator App One vs CatAuth

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Authenticator App One

This app generates secure two-factor authentication codes for your online accounts. It offers encrypted storage, instant backup, and easy account management for services like Google, Facebook, and more. Protect your digital life with a simple and reliable authentication solution.

Highlights
  • Secure 2FA & MFA code generation
  • Fast QR code setup
  • Manual setup key entry
  • Encrypted 2FA storage
  • Instant backup access
  • Organized account management
Read full description

Authenticator App One is a simple, secure, and powerful authentication app designed to help protect your online accounts with two-factor authentication (2FA), multi-factor authentication (MFA), and one-time password (OTP) codes. Keep your accounts safer with fast 2FA code generation, secure encrypted storage, instant backup access, and easy account management in one clean and reliable app. Protect your Google, Facebook, Instagram, Microsoft, Amazon, Discord, GitHub, Dropbox, PayPal, Reddit, WhatsApp, Twitch, Binance, Coinbase, Login.gov, and many other accounts that support authenticator-based 2FA or MFA. WHY USE AUTHENTICATOR APP ONE? Secure 2FA & MFA Code Generator Generate one-time login codes for your online accounts. Authenticator App One supports common TOTP-based authentication used by thousands of websites, apps, cloud services, social platforms, finance tools, and business accounts. Fast QR Code Setup Add accounts quickly by scanning a QR code. The app automatically detects supported 2FA setup information and helps you create a secure token in seconds. Manual Setup Key Entry If a QR code is not available, you can manually enter your service name, account name, and secret key to generate authentication codes. Encrypted 2FA Storage Your authentication data is designed to stay secure. Store and manage your 2FA accounts with protection focused on privacy, security, and reliability. Instant Backup Access Never worry about losing access when switching devices or reinstalling the app. Backup access helps you restore your authentication data more easily when available. Organized Account Management Manage all your authentication accounts in one place. Easily identify services by name, account email, icons, and verification codes. Private and Simple Experience Authenticator App One is built for users who want a clean, easy-to-use, and privacy-focused 2FA experience without unnecessary complexity. PERFECT FOR • Securing personal email and social accounts • Protecting business and cloud accounts • Adding extra protection to crypto and finance accounts • Managing multiple 2FA codes in one place • Replacing or organizing your authenticator setup • Improving login security across popular services Authenticator App One makes your login experience safer and easier. Instead of relying only on passwords, you can add an extra layer of protection to your accounts with time-based authentication codes. SUBSCRIPTION INFORMATION Authenticator App One offers premium access with a 3-day free trial. After the free trial ends, the subscription renews at $9.99 per week unless canceled. You can cancel anytime. No commitment. Start free for 3 days, then continue with premium access for $9.99 per week. Payment will be charged to your Apple App Store Account after the free trial ends, unless the subscription is canceled before the end of the trial period. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current trial or subscription period. Your account will be charged for renewal within 24 hours before the end of the current subscription period. The subscription remains active and paid subscriber features remain available until the end of the current billing period, even if you cancel before the renewal date. You can manage or cancel your subscription anytime in your App Store account settings. To cancel, open the Settings app on your iPhone, tap your Apple ID, go to Subscriptions, select Authenticator App One, and turn off auto-renewal. LEGAL Terms of Use: https://docs.google.com/document/d/1kDY3gktETclQzQK5l92ILMwPytAO5-yN51XFYjTfaGw Privacy Policy: https://docs.google.com/document/d/168VxryaKeOYwId_WWvdnSlvNa7xvypwcAHurX_xEhq4/ Contact Us: https://forms.gle/8ipA3go5mQ7HmZvd7

About

CatAuth

Features
Read full description

Protect your online accounts with CatAuth, a simple and reliable two-factor authenticator for OTP and TOTP verification codes. FAST TWO-FACTOR AUTHENTICATION CatAuth generates time-based one-time passwords directly on your device. Use them as an additional verification step when signing in to services that support TOTP authentication. QUICK AND EASY SETUP Scan a QR code or enter a setup key manually. CatAuth starts generating verification codes in seconds and keeps your accounts organized in one convenient place. KEY FEATURES • Generate current OTP and TOTP verification codes • Add accounts by scanning a QR code • Enter setup keys manually • Generate codes without an internet connection • Back up and restore your authenticator accounts • Manage multiple accounts in one place • View clear countdowns before codes refresh • Copy verification codes quickly WORKS OFFLINE Your TOTP codes are generated directly on your device using the account secret and current device time. No internet connection is required to view an up-to-date code after an account has been added. BACKUP AND RESTORE Create a backup of your authenticator accounts and restore them when needed. Keep access to your saved accounts when moving to another device or reinstalling the app. BROAD COMPATIBILITY CatAuth works with websites and services that support standard TOTP authentication, including email providers, social networks, cloud tools, developer platforms, financial services, and more. Make every sign-in safer and simpler with CatAuth. End of trial and renewal of subscription: - Once your purchase is confirmed, payment will be debited from your iTunes account; - The subscription will automatically renew unless the auto-renewal feature is turned off at least 24 hours before the end of the current period; - Subscription renewal fees are debited from your account within 24 hours before the end of the current period; - The user can manage subscriptions. Auto-renewal can be turned off after purchase in your iTunes Account Settings page; - It is not possible to cancel an existing subscription before its expiration date. Privacy Policy: https://cat2fauth.com/privacy-policy/ Terms of Use: https://cat2fauth.com/terms-of-use/

Screenshots

Authenticator App One4 screens
CatAuth4 screens

Verdict

The call

The clearest difference is ads: CatAuth at none against Authenticator App One's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Authenticator App One sells 1 in-app purchase, starting at $9.99 per 7 days and CatAuth sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Authenticator App One ships an update every 3 weeks, CatAuth every 2 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard1 real difference · 8 level
Authenticator App One versus CatAuth: the parameters behind the verdict, then further details
ParameterAuthenticator App OneCatAuth
PriceFreeFree
Rating4.8 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.6
Further details — not scored
Size18 MB46 MB
Age rating4+4+
DeveloperEdgeAIRICHYARD GEIMS, TOO

In-app purchases

1 purchases

Authenticator App One

Subscriptions1
  • Start Free Trial Now3 Days trial$9.997 Days
3 purchases

CatAuth

Subscriptions3
  • Premium Weekly$6.997 Days
  • Premium Weekly Trial3 Days trial$6.997 Days
  • Premium Yearly$29.991 Year

Questions

Is Authenticator App One free?
Authenticator App One is free to download, with in-app purchases available.
Is CatAuth free?
CatAuth is free to download, with in-app purchases available.
Do Authenticator App One or CatAuth have ads?
Authenticator App One shows ads; CatAuth does not.
Which is updated more often, Authenticator App One or CatAuth?
Authenticator App One ships an update every 3 weeks, and CatAuth every 2 weeks. Most recently, Authenticator App One was updated on September 22, 2026 and CatAuth on September 21, 2026.

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