Comparison

Auth0 Guardian vs Authenticator App ◦

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

Head to head
About

Auth0 Guardian

This app provides multi-factor authentication by sending push notifications to your device for easy approval or denial of account access. It can also generate one-time passwords for secure logins.

Highlights
  • Push notification authentication
  • Allow/deny account access
  • One-time password generation
  • Multi-factor authentication
  • Secure login
Features
Read full description

Auth0 Guardian is a mobile app that can deliver push notifications to a user’s pre-registered device (typically a mobile phone or tablet) from which a user can immediately allow or deny account access via the press of a button. It can also generate one-time passwords if that is preferred. Note for developers: Auth0 Guardian is one of the multi factor authentication options that can be used within the Auth0 identity platform (https://auth0.com). You can enable it with a single switch. You don’t have to change your apps to start supporting multi factor authentication.

About

Authenticator App ◦

This app enhances your digital security by protecting your online privacy and identity. It offers features like privacy detection for photos, two-factor authentication for accounts, secure storage for personal files, and detection of phishing websites. Safely scan QR codes and barcodes to guard against online threats.

Highlights
  • Privacy detection for photos
  • Two-factor authentication
  • Secure password-protected folder
  • Phishing site detection
  • Secure QR and barcode scanner
Read full description

In an era where digital security is crucial, DuoProtec offers a comprehensive set of tools designed to protect your online privacy and security. Our easy-to-use app combines essential security features with innovative technology to shield you from various online threats. Key Features: - Privacy Detection: Keep your identity information safe. Our privacy detection feature scans photos for any ID information to help prevent identity theft. - Authenticator: Strengthen the security of your various accounts with two-factor authentication. Easy setup for multiple accounts ensures you're protected at every step. - Safe Folder: Securely store your photos in a password-protected folder. Peace of mind knowing your personal files are safe. - Phishing Site Detection: Before you click, make sure it's safe. Enter any URL into our app to check if a website is legitimate or a potential phishing threat. - Secure QR-Scan: Scan QR codes and barcodes securely. Whether you're accessing a menu or checking into a venue, do it safely with DuoProtec’s secure scanner. Why Choose DuoProtec? DuoProtec is more than just an app; it's your partner in navigating the digital world safely. We believe in providing robust protection without compromising ease of use. With DuoProtec, you can: - Protect your accounts and personal identity. - Secure your private photos and documents. - Prevent falling victim to phishing and scam websites. - Safely scan QR codes and barcodes without risking your privacy. Your privacy and security matter. Download DuoProtec today and take the first step towards a safer online experience. Feel confident knowing your digital life is guarded with DuoProtec – where security meets simplicity. Regarding Subscriptions: - Upon confirmation of purchase, the payment will be charged to your iTunes Account. - Unless auto-renew is turned off at least 24 hours before the end of the current period, subscriptions will renew automatically. - Your account will be charged for renewal up to 24 hours before the current period ends, and the cost of renewal will be identified. - Subscribers can manage their subscriptions and turn off auto-renewal by going to their Account Settings post-purchase. - Should there be any unused portion of a free trial period offered, it will be forfeited when the user subscribes to that publication, where applicable. Terms: https://www.apexinnovateapps.com/terms Policy: https://www.apexinnovateapps.com/privacy Support: https://www.apexinnovateapps.com/support

Screenshots

Auth0 Guardian4 screens
Authenticator App ◦4 screens

Verdict

The call

The clearest difference is rating: Authenticator App ◦ at 4.4 against Auth0 Guardian's 2.4. Authenticator App ◦ also leads on ratings volume (982 vs 114) and iOS requirement (12.0 vs 15.0). Auth0 Guardian's advantage is in-app purchases (none vs 3). On price, review sentiment, update cadence and ads 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 $6.99 per month. Auth0 Guardian asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Authenticator App ◦ holds the better App Store score, 4.4 against 2.4. That said, the two scores are not equally well evidenced: Authenticator App ◦ has 982 ratings behind it against 114, so its average is the more settled of the two. Written reviews complicate that: 15% of Auth0 Guardian's written reviews are positive against 7% of Authenticator App ◦'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Auth0 Guardian ships an update every 3 months, Authenticator App ◦ every 2 months. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
Auth0 Guardian versus Authenticator App ◦: the parameters behind the verdict, then further details
ParameterAuth0 GuardianAuthenticator App ◦
PriceFreeFree
Rating2.4 (114 ratings)4.4 (982 ratings) — better
Positive reviews14.6% of reviews — better7.4% of reviews
Number of ratings114982 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size20 MB82 MB
Age rating4+17+
DeveloperAuth0Apex Innovate Limited

Customer experience

Auth0 Guardian

All ratings114 ratings
Positive28.9%
Neutral6.1%
Negative64.9%
Written reviews48 reviews
Positive14.6%
Neutral10.4%
Negative75.0%

Authenticator App ◦

All ratings982 ratings
Positive83.3%
Neutral3.8%
Negative12.9%
Written reviews27 reviews
Positive7.4%
Neutral0.0%
Negative92.6%

User reviews

Auth0 Guardian

From 114 App Store ratings

What we love

  • 👍 Generally reliable authenticator
  • 👍 Intuitive and simple
  • 👍 Clean easy to use app
  • 👍 Beautiful app that works
  • 👍 Worked just fine

Room to improve

  • 🐛 Notifications not working properly
  • 🐛 No more Apple Watch or lock screen approval
  • 🐛 Cannot approve from Apple Watch
  • 🐛 Push notifications stopped working
  • 🐛 App is garbage

Authenticator App ◦

From 982 App Store ratings

Room to improve

  • ⚠️ Misleading app description
  • 💰 Expensive subscription
  • 🚫 Not the free Google Authenticator app
  • 🔒 Security concerns
  • 🤯 Difficult to use/navigate

Bugs and requests

Auth0 Guardian

Reported bugs

37 issues
  • Notifications not working properly on iPhone iOS
  • Limited notification configuration settings
  • Apple Watch notification not working
  • Push notifications not working
  • New update broke Apple Watch approvals
Show 32 more
  • Cannot approve MFA with Apple Watch
  • Cannot long press on push notification to approve login
  • Push Notification not working
  • Push notifications stopped working
  • Update fixed push notifications, now requires manual code entry
  • New update still no notification sounds
  • Receiving same code for different accounts
  • iPhone does not show all numbers
  • Only shows 4 numbers, need to copy and paste to see all
  • Cannot see all 6 digits after update
  • Cannot see ALL 6 numbers to log onto computer
  • New phone transfer issues
  • App did not transfer over to new phone
  • QR code does not exist for new phone setup
  • Won't let me transfer my account to a different phone
  • Notifications are not working
  • No notification sound
  • No sound when notification comes up
  • No sound with the notification
  • Confirmations never come up, have to go into the app for codes
  • App prompts to start without instructions, link, or QR code
  • App did not transfer well and was unusable on new phone
  • Cannot install application on telephone
  • Poor migration, no way to migrate Authenticator app to a new device
  • Doesn't work—won't scan any QR code’s
  • Confirmation page doesn’t show immediately
  • Crashes immediately upon launch
  • Unable to remove tokens
  • Push authorization no longer works, app just turns off
  • Client won’t even open
  • App doesn't launch
  • Always crashes on startup

Requested features

12 requests
  • Allow account transfer to another phone
  • Create a feature to transfer connected accounts to the same app on another phone
  • Add watch capability
  • Needs a watch version
  • Add Apple Watch notification support
Show 7 more
  • Restore Apple Watch approval
  • Restore lock screen approval
  • Add sound to notifications
  • Allow users to see all 6 digits on iPhone
  • Improve app startup process
  • Provide instructions or QR code for initial setup
  • Allow deletion of retired tokens

Authenticator App ◦

Reported bugs

2 issues
  • Subscription charges without user consent
  • Inability to cancel subscription

In-app purchases

None

Auth0 Guardian

No in-app purchases

3 purchases

Authenticator App ◦

Subscriptions3
  • DuoProtec Premium 1 Month$6.991 Month
  • DuoProtec Premium 1 Year$39.991 Year
  • DuoProtec Premium 1 Year3 Days trial$49.991 Year

Questions

Is Auth0 Guardian free?
Auth0 Guardian is free to download, with no in-app purchases.
Is Authenticator App ◦ free?
Authenticator App ◦ is free to download, with in-app purchases available.
Which has better reviews, Auth0 Guardian or Authenticator App ◦?
Authenticator App ◦ is rated higher. Auth0 Guardian averages 2.4 out of 5 from 114 ratings, while Authenticator App ◦ averages 4.4 from 982 ratings.
Do Auth0 Guardian or Authenticator App ◦ have ads?
Neither Auth0 Guardian nor Authenticator App ◦ shows ads.
Which is updated more often, Auth0 Guardian or Authenticator App ◦?
Auth0 Guardian ships an update every 3 months, and Authenticator App ◦ every 2 months. Most recently, Auth0 Guardian was updated on October 16, 2026 and Authenticator App ◦ on October 15, 2026.

Other comparisons