# globalCOAL vs PM REFINERY

The clearest difference is update cadence: PM REFINERY at every 3 weeks against globalCOAL's every 5 months. globalCOAL's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

globalCOAL ships an update every 5 months, PM REFINERY every 3 weeks. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | globalCOAL | PM REFINERY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 13 MB | 13 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Trayport](https://appshunter.io/developer/593023141) | [PM REFINERY](https://appshunter.io/developer/1832611668) |

## What reviewers say

### globalCOAL

[App page](https://appshunter.io/ios/app/globalcoal/id879506478)

**Features:** macOS Compatibility

**In-app purchases:** none


### PM REFINERY

[App page](https://appshunter.io/ios/app/pm-refinery/id6749874333)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is globalCOAL free?

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

### Is PM REFINERY free?

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

### Do globalCOAL or PM REFINERY have ads?

Neither globalCOAL nor PM REFINERY shows ads.

### Which is updated more often, globalCOAL or PM REFINERY?

globalCOAL ships an update every 5 months, and PM REFINERY every 3 weeks. Most recently, globalCOAL was updated on October 17, 2026 and PM REFINERY on October 14, 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.*