CMC Field Guide vs Vision C5
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CMC Field Guide
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.
- Rope rescue and access diagrams
- Reference charts
- How-to information
- Bookmark and take notes
- Offline access to downloads
- Browse equipment and tutorials
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This free App allows quick access to rope rescue and access diagrams, reference charts, how-to information, and rescue references, all from the palm of your hand while out in the field. It's packed with reference charts, diagrams, and how-to information. With the CMC Field Guide App you can: Access rescue references instantly Bookmark and take notes on your favorite sections Download videos, guides, and manuals for offline use Browse equipment and information, tutorials, and product user manuals **Note** Updating this App will give you access to all of the functionality built into the most recent version of the App. Your saved information including Notes, References, and Attachments, will be carried through into the updated version.
Vision C5
This app allows users to easily update configuration settings for a specific facepiece device. It is designed to enhance situational intelligence with advanced features for improved visibility and breathing.
- Update configuration settings
- Enhance situational intelligence
- Improve field of view
- Optimize breathing regulator
- Integrate headphone technology
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The Vision C5 app makes it easy to update configuration settings on your 3M™ Scott™ Vision C5 facepiece. Designed using a platform approach, the 3M Scott Vision C5 Facepiece with E-Z Flo C5 Regulator incorporates the latest technology to enhance situational intelligence in a customizable solution. Featuring a wider field of view to see more, a new regulator design to breathe easier, and optional bone conduction headphone technology to hear what matters, the Vision C5 Facepiece with E-Z Flo C5 Regulator delivers the key performance qualities to help meet the changing needs of today’s firefighter.
Screenshots
Verdict
The clearest difference is rating: Vision C5 at 5.0 against CMC Field Guide's 4.0. Vision C5 also leads on iOS requirement (12.0 vs 15.1). CMC Field Guide's advantage is ratings volume (24 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Vision C5 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.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | CMC Field Guide | Vision C5 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 77.8% of reviews | — |
| Number of ratings | 24 — better | 1 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | CMC Rescue, Inc. | 3M Company |
Customer experience
CMC Field Guide
Vision C5
Bugs and requests
CMC Field Guide
Reported bugs
15 issues- 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
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- Multiple glitches where pages cannot be opened
- Cannot open the app after update
- New upgrade crashes on opening items
- Could not find page all the time
- App doesn't open
- Half the tabs disappear
- Barely works (can rarely get into any of the pages)
- Add-on pop up when viewing PDF
- Poor display quality - not useful for reading
- Only M/A illustration shown is 1:1 after update
Requested features
2 requests- Enable landscape mode
- Update with latest techniques
Vision C5
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CMC Field Guide
No in-app purchases
Vision C5
No in-app purchases
Questions
Is CMC Field Guide free?
Is Vision C5 free?
Which has better reviews, CMC Field Guide or Vision C5?
Do CMC Field Guide or Vision C5 have ads?
Which is updated more often, CMC Field Guide or Vision C5?
Other comparisons
