# CMC Field Guide vs Hotwash

The clearest difference is update cadence: Hotwash at every 5 days against CMC Field Guide's every 3 months. 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.

CMC Field Guide ships an update every 3 months, Hotwash every 5 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | CMC Field Guide | Hotwash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (24 ratings)](https://appshunter.io/ios/app/cmc-field-guide/id426955029/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 36 MB | 78 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CMC Rescue, Inc.](https://appshunter.io/developer/426955032) | [hotwash.work](https://appshunter.io/developer/1790408412) |

## 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


### Hotwash

[App page](https://appshunter.io/ios/app/hotwash/id6739195316)

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo 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 Hotwash free?

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

### Do CMC Field Guide or Hotwash have ads?

Neither CMC Field Guide nor Hotwash shows ads.

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

CMC Field Guide ships an update every 3 months, and Hotwash every 5 days. Most recently, CMC Field Guide was updated on November 6, 2026 and Hotwash on October 30, 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.*