Comparison

Authenticator App vs Auth

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

Head to head
About

Authenticator App

Secure your online accounts with this app that manages all your two-factor authentication (2FA) codes in one place. It offers seamless syncing across devices, organized folders, and encrypted backups for peace of mind. Personalize your experience with custom icons and themes for easy account recognition.

Highlights
  • Manage all 2FA codes in one app
  • Seamless sync across Apple devices
  • Encrypted backups for code protection
  • Organize accounts with folders
  • Custom icons and themes
  • iOS & macOS widgets for quick access
Features
Read full description

Take control of your digital security with Sentinel Authenticator, the trusted way to manage and protect your two-factor authentication (2FA) codes. Fully compatible with Google Authenticator, Authy, and all other authenticators – making it effortless to switch or use alongside your existing apps. /// Why Sentinel Authenticator? • All Your Codes, One App – Store and manage every 2FA code in a single, secure place. • Seamless Sync – Keep your codes up to date across all Apple devices with iCloud Keychain (encrypted by Apple) or Sentinel Cloud with end-to-end encryption. • Organized & Accessible – Create folders for work and personal accounts to find what you need faster. • Never Lose Access – Encrypted backups protect your codes so you always stay in control. /// Personalization & Ease of Use • 900+ Custom Icons for instant account recognition • 8+ Themes & Layouts including Modern, Classic, Focus, and more • iOS & macOS Widgets for quick access to your 2FA codes /// Always Here for You Need help? Contact us at hello@getsentinel.io – we usually respond within an hour. Protect your accounts today. Download Sentinel Authenticator now and secure apps like Instagram, Google, Binance, Kraken, Robinhood, Discord, and Twitch. For further details, review our policies: Terms of Service: https://getsentinel.io/terms-of-service Privacy Policy: https://getsentinel.io/privacy-policy

About

Auth

Enhance your online security with this app that generates time-based one-time passwords. Protect your accounts from unauthorized access by enabling two-factor authentication and scanning QR codes. Secure your digital life with robust encryption and convenient backup options.

Highlights
  • Generates one-time tokens
  • Two-factor authentication
  • Encrypted vault
  • Password/biometric unlock
  • Supports HOTP and TOTP
  • Automatic iCloud backups
  • Multiple entry methods
Features
Read full description

This app generates one-time tokens on your device which are used in combination with your password. This helps to protect your accounts from hackers, making your security bulletproof. Just enable the two-factor authentication in your account settings for your provider, scan the QR code provided and you're good to go! Main Features ◆ Encrypted, can be unlocked with a password or Touch/Face ID ◆ Supports industry standard algorithms: HOTP and TOTP ◆ Supports Supports 6/7/8 digits & SHA1/SHA-256/SHA-512 ◆ Supports automatic backups of the vault to iCloud ◆ Lots of ways to add new entries - Scan a QR code or an image of one - Enter details manually - Import from other popular authenticator apps ◆ Organization - Alphabetic/custom sorting - Custom or automatically generated icons - Advanced entry editing - Search by name/issuer Terms of Use: https://653a45caedf4b.site123.me/terms-of-use Privacy Policy: https://653a45caedf4b.site123.me/privacy-policy

Screenshots

Authenticator App4 screens
Auth3 screens

Verdict

The call

The clearest difference is rating: Authenticator App at 4.8 against Auth's 4.2. Authenticator App also leads on ads (none vs shown). Auth's advantage is review sentiment (87% vs 72%) and ratings volume (365 vs 32). On price, update cadence, in-app purchases and monetization model 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 sells 3 in-app purchases, starting at $1.99 per month and Auth sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Authenticator App holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Auth has 365 ratings behind it against 32, so its average is the more settled of the two. Written reviews complicate that: 72% of Authenticator App's written reviews are positive against 87% of Auth's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Authenticator App ships an update fortnightly, Auth every 2 weeks. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
Authenticator App versus Auth: the parameters behind the verdict, then further details
ParameterAuthenticator AppAuth
PriceFreeFree
Rating4.8 (32 ratings) — better4.2 (365 ratings)
Positive reviews72.4% of reviews87.3% of reviews — better
Number of ratings32365 — better
Update frequencyFortnightly — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS16.015.0 — better
Further details — not scored
Size50 MB10 MB
Age rating4+9+
DeveloperTommaso Carpi婷 兰

Customer experience

Authenticator App

All ratings32 ratings
Positive96.9%
Neutral0.0%
Negative3.1%
Written reviews105 reviews
Positive72.4%
Neutral4.8%
Negative22.9%

Auth

All ratings365 ratings
Positive78.9%
Neutral2.7%
Negative18.4%
Written reviews142 reviews
Positive87.3%
Neutral2.1%
Negative10.6%

User reviews

Authenticator App

From 32 App Store ratings

What we love

  • 👍 Easy to use and set up
  • 🚀 Seamless syncing across devices (iOS, macOS)
  • 🔒 Secure and dependable 2FA solution
  • 💡 Responsive and friendly developer
  • 💰 One-time purchase/lifetime option appreciated

Room to improve

  • 🐛 Widgets not working consistently (Mac/iPhone)
  • 💰 Paid app, no free tier for some features
  • 🐛 Some users experienced issues with syncing
  • 🐛 Codes not working for specific services (e.g., Discord, Amazon)
  • 🐛 App stuck on loading tokens for some users

Auth

From 365 App Store ratings

What we love

  • 🔒 Robust security features
  • 👍 User-friendly interface
  • 💡 Convenient multi-device sync
  • 🚀 Reliable performance
  • 🔒 Secure backup and recovery options

Room to improve

  • 🐛 Frequent ads disrupting usage
  • 💰 Paid premium version required for ad-free experience

Bugs and requests

Authenticator App

Reported bugs

12 issues
  • Widgets not working on Mac Desktop and iPhone
  • App stuck on loading tokens
  • Syncing issues between devices
  • Codes not working for specific services (Discord, Amazon)
  • Unexpected charges/multiple purchases
Show 7 more
  • Loading screen issues on iPhone 12 Pro Max (resolved)
  • Paid features (dark mode) removed/changed
  • Cannot delete items
  • Cannot rename accounts
  • Cannot edit accounts
  • Cannot reorder accounts
  • Inconsistent widget behavior

Requested features

17 requests
  • Ability to reorder/hide folders
  • Sort accounts by email address or service
  • Show duplicates
  • Show date service added
  • Backup options (more explicit)
Show 12 more
  • Start on login option
  • Ability to delete items
  • Ability to rename accounts
  • Ability to edit accounts
  • Ability to reorder accounts
  • Watch companion app
  • More customization options
  • Add password keeper in details page
  • Improve widget functionality
  • Add Chinese language support
  • Increase account limit beyond two for free tier
  • Easier export of all keys

Auth

Reported bugs

2 issues
  • Ads interfering with account setup
  • Occasional crashes or freezes

Requested features

2 requests
  • Dark mode option
  • Improved free tier with fewer ads

In-app purchases

3 purchases

Authenticator App

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Annual Subscription7 Days trial$9.991 Year
One-time1
  • Lifetime Access2 variants$39.99
2 purchases

Auth

Subscriptions2
  • Weekly premium$3.997 Days
  • Yearly premium$49.991 Year

Questions

Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Is Auth free?
Auth is free to download, with in-app purchases available.
Which has better reviews, Authenticator App or Auth?
Authenticator App is rated higher. Authenticator App averages 4.8 out of 5 from 32 ratings, while Auth averages 4.2 from 365 ratings.
Do Authenticator App or Auth have ads?
Auth shows ads; Authenticator App does not.
Which is updated more often, Authenticator App or Auth?
Authenticator App ships an update fortnightly, and Auth every 2 weeks. Most recently, Authenticator App was updated on September 29, 2026 and Auth on September 30, 2026.

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