# M vs UUUSIM

The clearest difference is rating: M at 4.6 against UUUSIM's 2.1. M also leads on ratings volume (1.2K vs 17). 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.

M holds the better App Store score, 4.6 against 2.1. That said, the two scores are not equally well evidenced: M has 1.2K ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 36% of M's written reviews are positive against 33% of UUUSIM's.

M ships an update every 10 days, UUUSIM every 2 weeks. The most recent releases landed on October 27, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | M | UUUSIM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.2K ratings)](https://appshunter.io/ios/app/m-tag-one-network/id1574366732/reviews)** | [2.1 (17 ratings)](https://appshunter.io/ios/app/uuusim/id6661026457/reviews) |
| Number of ratings | **1.2K** | 17 |
| Positive reviews | **36.1% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 53 MB | 8 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [One Network (Private) Limited](https://appshunter.io/developer/1574366734) | [卫英 梁](https://appshunter.io/developer/6812174216) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-tag-one-network/id1574366732)

Easily manage your M-Tag account on the go. Check your balance, view travel history, and recharge your tag securely. Review past trips and expenses to stay on top of your account details.

**Highlights:** Check account balance, View travel history, Securely recharge M-TAG, Review recent activity, Track trip details and costs, Compare monthly expenses

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and convenient
- 💡 Helpful for motorway travel

**What reviewers complain about**

- 🐛 Login and signup issues
- 🐛 App crashes and glitches
- 🚫 Unable to use out of country
- 🚫 Incompatible with newer devices
- ⚠️ Poor customer support

**Reported bugs**

- Login not working
- Signup not functioning
- Incorrect M-Tag information
- App crashing after updates

**Requested features**

- Ability to transfer/share M-Tag balance
- Postpaid monthly billing option
- Mandatory M-Tag purchase with new vehicle


### UUUSIM

[App page](https://appshunter.io/ios/app/uuusim/id6661026457)

This app utilizes Bluetooth to enable your device to send and receive text messages, make phone calls, and access the internet. It leverages Bluetooth technology for seamless connectivity and functionality.

**Highlights:** Send and receive text messages via Bluetooth, Make phone calls through Bluetooth, Access 4G internet using Bluetooth, Utilizes Bluetooth standard protocol

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M free?

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

### Is UUUSIM free?

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

### Which has better reviews, M or UUUSIM?

M is rated higher. M averages 4.6 out of 5 from 1.2K ratings, while UUUSIM averages 2.1 from 17 ratings.

### Do M or UUUSIM have ads?

Neither M nor UUUSIM shows ads.

### Which is updated more often, M or UUUSIM?

M ships an update every 10 days, and UUUSIM every 2 weeks. Most recently, M was updated on October 27, 2026 and UUUSIM on October 22, 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.*