Comparison

CMC Field Guide vs OFIRMS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Rope rescue and access diagrams
  • Reference charts
  • How-to information
  • Bookmark and take notes
  • Offline access to downloads
  • Browse equipment and tutorials
Features
Read full description

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.

About

OFIRMS

Features
Read full description

The Ohio Fire Incident Reporting Management System (OFIRMS) app will allow authorized fire departments in the State of Ohio, to report/write fire incidents. This is the mobile app version of the current OFIRMS portal currently used by fire departments through the State of Ohio. Users can set up Fire Department details and register department users, request Public Safety Decals, create incident's and many more station management features. The app offers offline support of incident creation and makes reporting easier and mobile with the ability to upload pictures on site. For more information, please contact the Ohio Department of Commerce, Division of State Fire Marshal, Fire Prevention Bureau at sfmprevention@com.ohio.gov

Screenshots

CMC Field Guide3 screens
OFIRMS4 screens

Verdict

The call

The clearest difference is update cadence: OFIRMS at every 3 weeks against CMC Field Guide's every 3 months. On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

CMC Field Guide ships an update every 3 months, OFIRMS every 3 weeks. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard1 real difference · 9 level
CMC Field Guide versus OFIRMS: the parameters behind the verdict, then further details
ParameterCMC Field GuideOFIRMS
PriceFreeFree
Rating4.0 (24 ratings) — better—
Positive reviews77.8% of reviews—
Number of ratings24 — better—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.114.0 — better
Further details — not scored
Size36 MB288 MB
Age rating4+17+
DeveloperCMC Rescue, Inc.3Di Inc.

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
Show 10 more
  • 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

OFIRMS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CMC Field Guide

No in-app purchases

None

OFIRMS

No in-app purchases

Questions

Is CMC Field Guide free?
CMC Field Guide is free to download, with no in-app purchases.
Is OFIRMS free?
OFIRMS is free to download, with no in-app purchases.
Do CMC Field Guide or OFIRMS have ads?
Neither CMC Field Guide nor OFIRMS shows ads.
Which is updated more often, CMC Field Guide or OFIRMS?
CMC Field Guide ships an update every 3 months, and OFIRMS every 3 weeks. Most recently, CMC Field Guide was updated on November 6, 2026 and OFIRMS on November 4, 2026.

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