# CMC Field Guide vs Go MPK

The clearest difference is update cadence: CMC Field Guide at every 3 months against Go MPK's every 7 months. CMC Field Guide also leads on ratings volume (24 vs 8). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.0 for CMC Field Guide against 4.0 for Go MPK. Both are backed by a comparable volume of ratings — 24 and 8 respectively. Written reviews are what separate them: 78% of CMC Field Guide's written reviews are positive against 71% of Go MPK's.

CMC Field Guide ships an update every 3 months, Go MPK every 7 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CMC Field Guide | Go MPK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (24 ratings)](https://appshunter.io/ios/app/cmc-field-guide/id426955029/reviews) | [4.0 (8 ratings)](https://appshunter.io/ios/app/go-mpk/id726657473/reviews) |
| Number of ratings | **24** | 8 |
| Positive reviews | **77.8% of reviews** | 71.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 36 MB | 126 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CMC Rescue, Inc.](https://appshunter.io/developer/426955032) | [GOGov, Inc.](https://appshunter.io/developer/351223719) |

## 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


### Go MPK

[App page](https://appshunter.io/ios/app/go-mpk/id726657473)

Easily report city issues like potholes or fallen trees by selecting the problem, taking a photo, and submitting. The app automatically identifies the location and directs it to the correct department for a fast resolution.

**Highlights:** Report city issues, Submit photos of problems, Automatic location detection, Issue tracking, Direct reporting to city departments

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

**In-app purchases:** none


## Frequently asked questions

### Is CMC Field Guide free?

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

### Is Go MPK free?

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

### Which has better reviews, CMC Field Guide or Go MPK?

CMC Field Guide and Go MPK are both rated 4.0 out of 5 on the App Store, from 24 and 8 ratings respectively.

### Do CMC Field Guide or Go MPK have ads?

Neither CMC Field Guide nor Go MPK shows ads.

### Which is updated more often, CMC Field Guide or Go MPK?

CMC Field Guide ships an update every 3 months, and Go MPK every 7 months. Most recently, CMC Field Guide was updated on October 16, 2026 and Go MPK on October 17, 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.*