CMC Field Guide vs E
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.
E
Access all your E-FORCE SLi battery rescue tools in one place. This application from GENESIS RESCUE SYSTEMS provides essential functionalities for managing and utilizing your rescue equipment.
- Battery rescue tool access
- E-FORCE SLi system management
- GENESIS RESCUE SYSTEMS tools
- Integrated functionalities
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The app for all your E-FORCE SLi battery rescue tools from GENESIS RESCUE SYSTEMS
Screenshots
Verdict
The clearest difference is rating: E at 5.0 against CMC Field Guide's 4.0. E also leads on iOS requirement (13.0 vs 15.1). CMC Field Guide's advantage is ratings volume (24 vs 2). 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.
E 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 2, 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 June 10, 2026 and June 11, 2026 respectively.
| Parameter | CMC Field Guide | E |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 77.0% of reviews | — |
| Number of ratings | 24 — better | 2 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 39 MB |
| Age rating | 4+ | 17+ |
| Developer | CMC Rescue, Inc. | Rescue Digital Systems GmbH |
Customer experience
CMC Field Guide
E
In-app purchases
CMC Field Guide
No in-app purchases
E
No in-app purchases
