# Carmichael Propane vs ROG Coastal PM

The clearest difference is update cadence: ROG Coastal PM at every 3 months against Carmichael Propane's every 15 months. Carmichael Propane's advantage is iOS requirement (12.2 vs 15.0). 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.

Carmichael Propane ships an update every 15 months, ROG Coastal PM every 3 months. The most recent releases landed on October 27, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Carmichael Propane | ROG Coastal PM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 months** |
| Size | 46 MB | 150 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EDPO, LLC](https://appshunter.io/developer/1521548149) | [CINC Systems](https://appshunter.io/developer/673135886) |

## What reviewers say

### Carmichael Propane

[App page](https://appshunter.io/ios/app/carmichael-propane/id1642335109)

**Features:** macOS Compatibility

**In-app purchases:** none


### ROG Coastal PM

[App page](https://appshunter.io/ios/app/rog-coastal-pm/id6450180492)

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

**In-app purchases:** none


## Frequently asked questions

### Is Carmichael Propane free?

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

### Is ROG Coastal PM free?

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

### Do Carmichael Propane or ROG Coastal PM have ads?

Neither Carmichael Propane nor ROG Coastal PM shows ads.

### Which is updated more often, Carmichael Propane or ROG Coastal PM?

Carmichael Propane ships an update every 15 months, and ROG Coastal PM every 3 months. Most recently, Carmichael Propane was updated on October 27, 2026 and ROG Coastal PM on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*