ERG for iOS: iPhone vs Android
ERG for iOS gets 500+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
ERG for iOS by Pipeline and Hazardous Materials Safety Administration is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
4.7 ★
3.9k ratings, both stores
Measured
Best rank now
#21
Android · 
Medical Free
Medical FreeMeasured
App Store
App details
App ID
1597142669
Publisher
Pipeline and Hazardous Materials Safety Administration
Publisher country
United States
On the store since
Jan 2022
4 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
12+
2 content notes below
Languages
3
EN FR ES
Size
28 MB
Content notesInfrequent/Mild Alcohol, Tobacco, or Drug Use or ReferencesInfrequent/Mild Medical/Treatment Information
Google Play
App details
App ID
gov.nih.nlm.erg2012
Publisher
Pipeline and Hazardous Materials Safety Administration
Publisher country
United States
Content rating
Everyone 10+
ERG for iOS downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | – | 1k+ |
| Google Play | 500+ | 1M+ Measured |
| Total | 500+ Confidence | 1M+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Where ERG for iOS's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.8 ★ | 65 |
| Google Play | 4.7 ★ | 3.9k 384 written reviews |
| Both stores | 4.7 ★ weighted by ratings | 3.9k |
About ERG for iOS
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.
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.
ERG for iOS iPhone
ERG for iOS gets 500+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
Not in any tracked top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
CategoryReference
PriceFree
Released
Rating★ 4.8 (65)
Version4.1.1
Age rating12+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)1k+ worldwide
Rating
4.8 ★
65 ratings
Measured
ERG for iOS on the App Store
App details
App ID
1597142669
Publisher
Pipeline and Hazardous Materials Safety Administration
Publisher country
United States
On the store since
Jan 2022
4 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
12+
2 content notes below
Languages
3
EN FR ES
Size
28 MB
Content notesInfrequent/Mild Alcohol, Tobacco, or Drug Use or ReferencesInfrequent/Mild Medical/Treatment Information
ERG for iOS downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where ERG for iOS's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.8 ★
65 ratings
Measured
Ratings
65
Measured
About ERG for iOS
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.
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.
Latest updates
4.1.1
Bug fix related to distance alerts on the map
More from Pipeline and Hazardous Materials Safety Administration
ERG for Android Android
ERG for Android gets 500+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
ERG for Android is #121 in Medical Free on Google Play in United States and charting in 4 of 23 countries we track.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperPHMSA
CategoryMedical
PriceFree
Released
Installs1M+
Rating★ 4.7 (3.9k)
Updated
Content ratingEveryone 10+
Rating
4.7 ★
3.9k ratings
Measured
Best rank now
#121
Medical FreeMeasured
ERG for Android on Google Play
App details
App ID
gov.nih.nlm.erg2012
Publisher
Pipeline and Hazardous Materials Safety Administration
Publisher country
United States
Content rating
Everyone 10+
ERG for Android downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where ERG for Android's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | MedicalFree | #121 |
| Mexico | MedicalFree | #21 |
| Canada | MedicalFree | #36 |
 United Arab Emirates | MedicalFree | #127 |
Apps near ERG for Android on the chart
Medical Free, around #121.
Ratings
Google Play, worldwide.
Rating
4.7 ★
3.9k ratings
Measured
Ratings
3.9k
Measured
Written reviews
384
Measured
About ERG for Android
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.
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.
What's new in 4.1.1
Update Android SDK