Comparison

CMC Field Guide vs GulfSAR

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

GulfSAR

This app provides a critical communication channel during natural disasters when traditional emergency services may be overwhelmed. It sends your emergency details and precise GPS location to responders via internet or text message, increasing the chances of timely assistance.

Highlights
  • Emergency alerts during disasters
  • GPS location sharing
  • Internet and SMS communication
  • Optional personal/medical data inclusion
  • Secure on-device data storage
Read full description

Hurricanes, Tropical Storms, Large area natural disasters happen and are dangerous. They can even overwhelm traditional 911 systems either through an overload of emergency calls or damaged cell towers leaving people with serious emergencies frustrated and unable to get through to emergency services. That's where GulfSAR comes in. With GulfSAR installed on your smartphone we will use any connection available including internet connection and text message to get your emergency to the right emergency services along with your exact GPS coordinates to help emergency responders get to your location faster. Any emergency that you send through GulfSAR will send all relevant data first through your device’s internet connection (if available) and then via SMS text message through the “Text to 911” service (where available), thus increasing the odds even during natural disasters that your situation will be communicated to emergency responders. Along with your GPS coordinates and current emergency situation, some of the information that you can optionally include are: - Name - Age - Gender - Medications that you currently take - Important Medical Conditions or History - Allergies - Special Needs or Considerations All of this information is kept securely on your smartphone and will ONLY be sent to emergency responders to help them better respond to your situation.

Screenshots

CMC Field Guide3 screens
GulfSAR4 screens

Verdict

The call

The clearest difference is rating: GulfSAR at 5.0 against CMC Field Guide's 4.0. 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

GulfSAR 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.

UpkeepUpdate frequency

CMC Field Guide ships an update every 3 months, GulfSAR every 6 weeks. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
CMC Field Guide versus GulfSAR: the parameters behind the verdict, then further details
ParameterCMC Field GuideGulfSAR
PriceFreeFree
Rating4.0 (24 ratings)5.0 (1 ratings) — better
Positive reviews77.8% of reviews—
Number of ratings24 — better1
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.1 — better16.6
Further details — not scored
Size36 MB16 MB
Age rating4+4+
DeveloperCMC Rescue, Inc.SR2 Solutions, LLC

Customer experience

CMC Field Guide

All ratings24 ratings
Positive66.7%
Neutral20.8%
Negative12.5%
Written reviews63 reviews
Positive77.8%
Neutral3.2%
Negative19.0%

GulfSAR

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

GulfSAR

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CMC Field Guide

No in-app purchases

None

GulfSAR

No in-app purchases

Questions

Is CMC Field Guide free?
CMC Field Guide is free to download, with no in-app purchases.
Is GulfSAR free?
GulfSAR is free to download, with no in-app purchases.
Which has better reviews, CMC Field Guide or GulfSAR?
GulfSAR is rated higher. CMC Field Guide averages 4.0 out of 5 from 24 ratings, while GulfSAR averages 5.0 from 1 ratings.
Do CMC Field Guide or GulfSAR have ads?
Neither CMC Field Guide nor GulfSAR shows ads.
Which is updated more often, CMC Field Guide or GulfSAR?
CMC Field Guide ships an update every 3 months, and GulfSAR every 6 weeks. Most recently, CMC Field Guide was updated on October 23, 2026 and GulfSAR on October 8, 2026.

Other comparisons