# Authenticator · vs M

The clearest difference is rating: Authenticator · at 4.6 against M's 1.0. Authenticator · also leads on update cadence (every 9 days vs every 10 months) and ratings volume (26K vs 1). M's advantage is in-app purchases (none vs 12) and iOS requirement (13.4 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Authenticator · sells 12 in-app purchases, starting at $6.99 per 7 days. M asks for nothing beyond the download.

Authenticator · holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Authenticator · has 26K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 23% of Authenticator ·'s written reviews are positive against 0% of M's.

Authenticator · ships an update every 9 days, M every 10 months. The most recent releases landed on October 22, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Authenticator · | M |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (26K ratings)](https://appshunter.io/ios/app/authenticator/id1602061522/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/m-viewer/id6449718300/reviews) |
| Number of ratings | **26K** | 1 |
| Positive reviews | **23.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#31** | — |
| Size | 119 MB | 65 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SMM service, s.r.o.](https://appshunter.io/developer/1503472689) | [M-viewer](https://appshunter.io/developer/1690216067) |

## What reviewers say

### Authenticator ·

[App page](https://appshunter.io/ios/app/authenticator/id1602061522)

**Currently charting:** #31 Top Grossing · Utilities, #153 Top Free · Utilities (US App Store)

Securely store and generate two-factor authentication (2FA) tokens for your online accounts. Protect your accounts from hackers with an additional layer of security. Features encrypted backups, cross-device synchronization, and a private browser.

**Highlights:** Secure 2FA token generation, Encrypted iCloud backups, Cross-device synchronization, Import/Export 2FA codes, Password manager with leak protection, Private browser, App PIN lock

**Features:** Safari Extension, Apple Watch app, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Starter | $6.99 | per 7 days |
| 1 Month Promo | $7.99 | per month |
| 1 Week Plan | $9.99 | per 7 days |
| 1 Month Plan - VPN | $12.99 | per month |
| 1 Month Plan | $12.99 | per month |
| 1 Month Special | $12.99 | per month |
| 1 Month Plan - 7 Days | $12.99 | per month |
| 1 Year Plan | $49.99 | per year |
| 1 Year Plan | $59.99 | per year |
| 1 Year Plan - 3 Days | $59.99 | per year |
| 1 Year - 7 Days | $69.99 | per year |
| 1 Year Plan - VPN | $79.99 | per year |

**What reviewers like**

- 💡 Helpful for 2FA
- 👍 Easy to navigate
- 🚀 Efficient authentication

**What reviewers complain about**

- 🐛 Inconsistent performance
- 💰 Subscription-based model
- 🔒 Concerns about security and privacy
- 🤔 Misleading marketing

**Reported bugs**

- Codes not working as expected
- Accounts disappearing after device change
- Inability to cancel subscription

**Requested features**

- Backup and restore functionality
- Support for more account types
- Clearer instructions for setup and usage


### M

[App page](https://appshunter.io/ios/app/m-viewer/id6449718300)

This application provides live video monitoring with cloud-based recording, saving, and panic alerts. It offers enhanced convenience and security for your surveillance needs.

**Highlights:** Live video monitoring, Video recording, Cloud video saving, Panic alert system, Cloud-based services

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator · free?

Authenticator · is free to download, with in-app purchases available.

### Is M free?

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

### Which has better reviews, Authenticator · or M?

Authenticator · is rated higher. Authenticator · averages 4.6 out of 5 from 26K ratings, while M averages 1.0 from 1 ratings.

### Do Authenticator · or M have ads?

Neither Authenticator · nor M shows ads.

### Which is updated more often, Authenticator · or M?

Authenticator · ships an update every 9 days, and M every 10 months. Most recently, Authenticator · was updated on October 22, 2026 and M on September 28, 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.*