# ACU PAY M vs blueplus+ merchant

The clearest difference is update cadence: blueplus+ merchant at monthly against ACU PAY M's every 3 months. blueplus+ merchant also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

ACU PAY M ships an update every 3 months, blueplus+ merchant monthly. The most recent releases landed on September 27, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ACU PAY M | blueplus+ merchant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 38 MB | 50 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ACU PAY THAILAND COMPANY LIMITED](https://appshunter.io/developer/1599060180) | [PTT OIL AND RETAIL BUSINESS PUBLIC COMPANY LIMITED](https://appshunter.io/developer/1545539449) |

## What reviewers say

### ACU PAY M

[App page](https://appshunter.io/ios/app/acu-pay-m/id1663140544)

**In-app purchases:** none


### blueplus+ merchant

[App page](https://appshunter.io/ios/app/blueplus-plus-merchant/id6743200805)

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

**In-app purchases:** none


## Frequently asked questions

### Is ACU PAY M free?

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

### Is blueplus+ merchant free?

blueplus+ merchant is free to download, with no in-app purchases.

### Which is updated more often, ACU PAY M or blueplus+ merchant?

ACU PAY M ships an update every 3 months, and blueplus+ merchant monthly. Most recently, ACU PAY M was updated on September 27, 2026 and blueplus+ merchant on October 15, 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.*