# M vs ERG4Thai

The clearest difference is iOS requirement: ERG4Thai at 13.0 against M's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

M ships an update every 2 months, ERG4Thai every 3 months. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | M | ERG4Thai |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 43 MB | 86 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [The Department of Highways, Thailand](https://appshunter.io/developer/1125869830) | [Pollution Control Department, Thailand](https://appshunter.io/developer/966167337) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-pass/id1201152421)

This application provides M-Pass cardholders with convenient access to their account information. Users can easily check their remaining balance and review their toll usage history anytime, anywhere. Registration is required via the official website to access these features.

**Highlights:** Check remaining balance, View toll usage history, Convenient access, Real-time updates, Easy registration

**In-app purchases:** none


### ERG4Thai

[App page](https://appshunter.io/ios/app/erg4thai/id1514892942)

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

**In-app purchases:** none


## Frequently asked questions

### Is M free?

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

### Is ERG4Thai free?

ERG4Thai is free to download, with no in-app purchases.

### Do M or ERG4Thai have ads?

Neither M nor ERG4Thai shows ads.

### Which is updated more often, M or ERG4Thai?

M ships an update every 2 months, and ERG4Thai every 3 months. Most recently, M was updated on October 21, 2026 and ERG4Thai on October 9, 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.*