Comparison

AskRail vs ERG for iOS

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

ERG for iOS

This app provides first responders with quick access to critical information for hazardous materials transportation incidents. It features an indexed list of dangerous goods, including ID numbers, hazards, and safety precautions, aiding in effective response.

Highlights
  • Indexed list of dangerous goods
  • ID number lookup
  • General hazard information
  • Recommended safety precautions
  • Multi-language support (English, French, Spanish)
Features
Currently charting
Read full description

PHMSA’s Emergency Response Guidebook (ERG) is the go-to resource for first responders during the initial phase of a dangerous goods or hazardous materials transportation incident. The ERG app is a valuable companion, based on the latest edition of the ERG, to help responders quickly access critical information at their fingertips. The app features an indexed list of dangerous goods, including their associated ID number, general hazards, and recommended safety precautions. In practical scenarios, such as responding to an overturned tractor trailer displaying a DOT hazmat placard, emergency responders can use the app to quickly identify the material associated with the placard and get guidance on how to respond effectively. Full versions available in English, French, and Spanish.

Screenshots

AskRail4 screens
ERG for iOS4 screens

Verdict

The call

The clearest difference is rating: ERG for iOS at 4.8 against AskRail's 4.1. ERG for iOS also leads on review sentiment (100% vs 58%) and chart position (#154 vs unranked). On price, ratings volume, update cadence and ads 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

ERG for iOS holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 37 and 64 respectively. Written reviews point the same way: 58% of AskRail's written reviews are positive against 100% of ERG for iOS's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on July 21, 2026 and September 22, 2026 respectively.

Scorecard4 real differences · 7 level
AskRail versus ERG for iOS: the parameters behind the verdict, then further details
ParameterAskRailERG for iOS
PriceFreeFree
Rating4.1 (37 ratings)4.8 (64 ratings) — better
Positive reviews58.3% of reviews100.0% of reviews — better
Number of ratings3764 — better
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#154 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.012.0 — better
Further details — not scored
Size44 MB27 MB
Age rating12+12+
DeveloperAssociation of American RailroadsPipeline and Hazardous Materials Safety Administration

Customer experience

AskRail

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

ERG for iOS

All ratings64 ratings
Positive95.3%
Neutral3.1%
Negative1.6%
Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AskRail

No in-app purchases

None

ERG for iOS

No in-app purchases

Questions

Is AskRail free?
AskRail is free to download, with no in-app purchases.
Is ERG for iOS free?
ERG for iOS is free to download, with no in-app purchases.
Which has better reviews, AskRail or ERG for iOS?
ERG for iOS is rated higher. AskRail averages 4.1 out of 5 from 37 ratings, while ERG for iOS averages 4.8 from 64 ratings.
Do AskRail or ERG for iOS have ads?
Neither AskRail nor ERG for iOS shows ads.
Which is updated more often, AskRail or ERG for iOS?
AskRail ships an update every 4 months, and ERG for iOS every 4 months. Most recently, AskRail was updated on July 21, 2026 and ERG for iOS on September 22, 2026.

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