# MaX UC vs Auth0 Guardian

The clearest difference is rating: MaX UC at 4.1 against Auth0 Guardian's 2.4. MaX UC also leads on ratings volume (1.1K vs 114). Auth0 Guardian's advantage is iOS requirement (15.0 vs 17.6). On price, review sentiment, update cadence and ads there is nothing between them.

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

MaX UC holds the better App Store score, 4.1 against 2.4. That said, the two scores are not equally well evidenced: MaX UC has 1.1K ratings behind it against 114, so its average is the more settled of the two. Written reviews point the same way: 18% of MaX UC's written reviews are positive against 15% of Auth0 Guardian's.

MaX UC ships an update every 2 months, Auth0 Guardian every 3 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | MaX UC | Auth0 Guardian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (1.1K ratings)](https://appshunter.io/ios/app/max-uc/id546673632/reviews)** | [2.4 (114 ratings)](https://appshunter.io/ios/app/auth0-guardian/id1093447833/reviews) |
| Number of ratings | **1.1K** | 114 |
| Positive reviews | **17.5% of reviews** | 14.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 131 MB | 20 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Metaswitch](https://appshunter.io/developer/325072030) | [Auth0](https://appshunter.io/developer/1076692516) |

## What reviewers say

### MaX UC

[App page](https://appshunter.io/ios/app/max-uc/id546673632)

Manage your home or office phone services from any device, anywhere. Features include high-quality audio, cross-device chat syncing, visual voicemail with transcriptions, and real-time contact presence. The app is designed with accessibility in mind, meeting WCAG 2.1 AA guidelines.

**Highlights:** High quality audio, Cross-device chat syncing, Visual voicemail with transcriptions, Real-time contact presence, Accessibility support (WCAG 2.1 AA)

**Features:** Siri integration, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent POTS replacement
- 👍 Great soft phone app
- 💡 Can answer calls from anywhere

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Unreliable call quality
- 🐛 Constant reconnecting issues
- 🐛 Inability to transfer or park calls
- 🐛 Ignores Focus mode

**Reported bugs**

- Incoming calls go straight to voicemail
- Calls drop or fail to connect
- Chat messages disappear or don't sync
- App crashes after iOS updates

**Requested features**

- Add texting functionality
- Provide more ringtone and volume options
- Implement call parking and transfer features
- Improve Bluetooth compatibility


### 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

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked questions

### Is MaX UC free?

MaX UC is free to download, with no in-app purchases.

### Is Auth0 Guardian free?

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

### Which has better reviews, MaX UC or Auth0 Guardian?

MaX UC is rated higher. MaX UC averages 4.1 out of 5 from 1.1K ratings, while Auth0 Guardian averages 2.4 from 114 ratings.

### Do MaX UC or Auth0 Guardian have ads?

Neither MaX UC nor Auth0 Guardian shows ads.

### Which is updated more often, MaX UC or Auth0 Guardian?

MaX UC ships an update every 2 months, and Auth0 Guardian every 3 months. Most recently, MaX UC was updated on October 16, 2026 and Auth0 Guardian on October 16, 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.*