# Auth0 Guardian vs Zip Authenticator

The clearest difference is rating: Zip Authenticator at 5.0 against Auth0 Guardian's 2.4. Zip Authenticator also leads on iOS requirement (13.4 vs 15.0). Auth0 Guardian's advantage is update cadence (every 3 months vs every 13 months) and ratings volume (113 vs 6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zip Authenticator holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: Auth0 Guardian has 113 ratings behind it against 6, so its average is the more settled of the two.

Auth0 Guardian ships an update every 3 months, Zip Authenticator every 13 months. Both last shipped on September 17, 2026.

## The numbers

| Metric | Auth0 Guardian | Zip Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (113 ratings)](https://appshunter.io/ios/app/auth0-guardian/id1093447833/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/zip-authenticator/id1631427997/reviews)** |
| Number of ratings | **113** | 6 |
| Positive reviews | 14.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 13 months |
| Monetization | Free | Free |
| Size | 20 MB | 17 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Auth0](https://appshunter.io/developer/1076692516) | [ZipHQ, Inc.](https://appshunter.io/developer/1486552137) |

## What reviewers say

### Auth0 Guardian

[App page](https://appshunter.io/ios/app/auth0-guardian/id1093447833)

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:** Vision Pro support

**In-app purchases:** none


### Zip Authenticator

[App page](https://appshunter.io/ios/app/zip-authenticator/id1631427997)

Enhance financial transaction security with multi-factor authentication for Zip users. Approve payments directly from your mobile device, receiving detailed transaction information before confirmation. Compliant with EU regulations for secure online payments.

**Highlights:** Multi-factor authentication for Zip payments, Displays transaction details (amount, payee), EU Strong Customer Authentication (SCA) compliance, Easy QR code setup, PIN-based verification

**In-app purchases:** none


## Frequently asked questions

### Is Auth0 Guardian free?

Auth0 Guardian is free to download, with no in-app purchases.

### Is Zip Authenticator free?

Zip Authenticator is free to download, with no in-app purchases.

### Which has better reviews, Auth0 Guardian or Zip Authenticator?

Zip Authenticator is rated higher. Auth0 Guardian averages 2.4 out of 5 from 113 ratings, while Zip Authenticator averages 5.0 from 6 ratings.

### Do Auth0 Guardian or Zip Authenticator have ads?

Neither Auth0 Guardian nor Zip Authenticator shows ads.

### Which is updated more often, Auth0 Guardian or Zip Authenticator?

Auth0 Guardian ships an update every 3 months, and Zip Authenticator every 13 months. Most recently, Auth0 Guardian was updated on September 17, 2026 and Zip Authenticator on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*