# CMC Field Guide vs FD Pump Ops

The clearest difference is rating: FD Pump Ops at 5.0 against CMC Field Guide's 4.0. CMC Field Guide's advantage is in-app purchases (none vs 1) and ratings volume (24 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FD Pump Ops sells 1 one-off in-app purchase. CMC Field Guide asks for nothing beyond the download.

FD Pump Ops holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: CMC Field Guide has 24 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | CMC Field Guide | FD Pump Ops |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (24 ratings)](https://appshunter.io/ios/app/cmc-field-guide/id426955029/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fd-pump-ops/id6756896165/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | **Free** | Paid |
| Size | 36 MB | 52 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CMC Rescue, Inc.](https://appshunter.io/developer/426955032) | [Paul Brewer](https://appshunter.io/developer/1833718234) |

## What reviewers say

### CMC Field Guide

[App page](https://appshunter.io/ios/app/cmc-field-guide/id426955029)

Access rope rescue and access diagrams, reference charts, and how-to information instantly in the field. This free app provides essential rescue references, allows for note-taking, and supports offline access to downloaded content.

**Highlights:** Rope rescue and access diagrams, Reference charts, How-to information, Bookmark and take notes, Offline access to downloads, Browse equipment and tutorials

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great resource for rescue
- 👍 Useful for knots
- 👍 Informative and well-organized
- 👍 Handy reference tool
- 👍 Clear illustrations

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 Unable to access content after updates
- 🐛 Glitches and bugs
- 🐛 Poor display quality
- 🐛 Not working on iPad

**Reported bugs**

- App crashes before it opens
- Unable to go beyond the first page
- Unable to access after updating
- App crashed twice
- Some links in the app don't work

**Requested features**

- Enable landscape mode
- Update with latest techniques


### FD Pump Ops

[App page](https://appshunter.io/ios/app/fd-pump-ops/id6756896165)

This comprehensive fireground operating system provides firefighters with essential tools for pump operations, fire flow estimation, relay pumping, wildland incidents, and company officer decision-making. It offers a distraction-free, offline-capable interface designed for high-stress environments, replacing traditional reference materials with digital confidence.

**Highlights:** Pump discharge pressure calculations, Friction loss for various lines, Fire flow estimation methods, Relay pumping calculations, Wildland fire tools, Company officer decision support, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


## Frequently asked questions

### Is CMC Field Guide free?

CMC Field Guide is free to download, with no in-app purchases.

### Is FD Pump Ops free?

FD Pump Ops is free to download, with in-app purchases available.

### Which has better reviews, CMC Field Guide or FD Pump Ops?

FD Pump Ops is rated higher. CMC Field Guide averages 4.0 out of 5 from 24 ratings, while FD Pump Ops averages 5.0 from 1 ratings.

### Do CMC Field Guide or FD Pump Ops have ads?

Neither CMC Field Guide nor FD Pump Ops shows ads.

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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.*