Comparison

AskRail vs Decon Field Guide

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

Head to head
About

AskRail

This app provides hazardous materials safety information for first responders dealing with rail incidents. It allows authorized personnel to query railcar contents and offers critical data for emergency response. Access to advanced features requires verification and railroad sponsorship.

Highlights
  • Hazardous materials safety information
  • Rail incident support
  • Query railcar contents
  • Emergency response data
  • First responder tool
Features
Read full description

The AskRail app is a hazardous materials safety tool for first responders who are first on scene or directly support the first on scene in the event of a rail incident. Access to certain features, including the ability to query railcar contents based on an equipment number, is restricted to authorized personnel. To obtain authorization to use the restricted features, you must assert that you are a first responder, provide information about your emergency response agency, and identify a supervisor who can attest to your first responder duties. You also must obtain sponsorship from a Class I railroad. This process may take up to several weeks. AskRail is a collaborative effort among all North American Class I railroads, the Association of American Railroads, Railinc Corp., and the Transportation Technology Center, Inc. For more information about AskRail please visit: www.askrail.us.

About

Decon Field Guide

This reference app provides quick and efficient decontamination methods for hundreds of threats. It features a classic Threat Index, pictorial instructions, and an in-app dwell timer to guide users through mission execution. Designed for approved users, it aims to make anyone an instant decontamination expert.

Highlights
  • Threat Index for decontamination methods
  • Pictorial instructions
  • In-app dwell timer
  • Covers hundreds of threats
  • Designed for approved users
Features
Read full description

Imagine decontamination in the palm of your hand. Introducing the all-new, redesigned Decon Field Guide. Using the same classic Threat Index, quickly and efficiently determine proper decontamination methods for hundreds of known and emerging threats and execute your mission flawlessly utilizing pictorial instructions and in-app dwell timer. Become an instant decontamination expert with the Decon Field Guide. Only available for approved users. Download now.

Screenshots

AskRail4 screens
Decon Field Guide4 screens

Verdict

The call

The clearest difference is review sentiment: AskRail at 58% against Decon Field Guide's 0%. AskRail also leads on ads (none vs shown) and monetization model (free vs ad-supported). Decon Field Guide's advantage is rating (4.6 vs 4.1). On price, update cadence, 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.

ReceptionRating · Positive reviews · Number of ratings

Decon Field Guide holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 37 and 8 respectively. Written reviews complicate that: 58% of AskRail's written reviews are positive against 0% of Decon Field Guide's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

AskRail ships an update every 4 months, Decon Field Guide every 2 months. The most recent releases landed on July 21, 2026 and June 4, 2026 respectively.

Scorecard5 real differences · 5 level
AskRail versus Decon Field Guide: the parameters behind the verdict, then further details
ParameterAskRailDecon Field Guide
PriceFreeFree
Rating4.1 (37 ratings)4.6 (8 ratings) — better
Positive reviews58.3% of reviews — better0.0% of reviews
Number of ratings37 — better8
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size44 MB73 MB
Age rating12+17+
DeveloperAssociation of American RailroadsFirst Line Technology, LLC

Customer experience

AskRail

All ratings37 ratings
Positive78.4%
Neutral0.0%
Negative21.6%
Written reviews12 reviews
Positive58.3%
Neutral0.0%
Negative41.7%

Decon Field Guide

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

AskRail

No in-app purchases

None

Decon Field Guide

No in-app purchases

Questions

Is AskRail free?
AskRail is free to download, with no in-app purchases.
Is Decon Field Guide free?
Decon Field Guide is free to download, with no in-app purchases.
Which has better reviews, AskRail or Decon Field Guide?
Decon Field Guide is rated higher. AskRail averages 4.1 out of 5 from 37 ratings, while Decon Field Guide averages 4.6 from 8 ratings.
Do AskRail or Decon Field Guide have ads?
Decon Field Guide shows ads; AskRail does not.
Which is updated more often, AskRail or Decon Field Guide?
AskRail ships an update every 4 months, and Decon Field Guide every 2 months. Most recently, AskRail was updated on July 21, 2026 and Decon Field Guide on June 4, 2026.

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