ILICALC vs ERG for iOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ILICALC
This app calculates pipeline flow rates and pressures in various units. It also helps determine ILI or pig run times and convert units for flow rates, pressures, and distances. Users can look up pipe schedules, wall thickness, and pipe grades.
- Calculate pipeline flow rates and pressures
- Determine ILI or pig run times
- Convert units for flow, pressure, and distance
- Lookup pipe schedules and specifications
- Supports multiple units of measurement
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CALCULATE - Pipeline flow rates and pressures in a variety of units - bbls/hr, e3m3/day, etc - ILI or pig run times under various conditions CONVERT UNITS - Flow rates - Pressures - Distance LOOKUP - Pipe schedules - Wall thickness - Pipe grades
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.
- Indexed list of dangerous goods
- ID number lookup
- General hazard information
- Recommended safety precautions
- Multi-language support (English, French, Spanish)
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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
Verdict
The clearest difference is update cadence: ILICALC at every 2 weeks against ERG for iOS's every 4 months. ERG for iOS's advantage is rating (4.8 vs 4.5) and ratings volume (64 vs 2). On price, review sentiment, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ERG for iOS holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: ERG for iOS has 64 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
ILICALC ships an update every 2 weeks, ERG for iOS every 4 months. The most recent releases landed on June 4, 2026 and September 22, 2026 respectively.
| Parameter | ILICALC | ERG for iOS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 4.8 (64 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 64 — better |
| Update frequency | Every 2 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #193 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 27 MB |
| Age rating | 4+ | 12+ |
| Developer | Onstream Pipeline Inspection Services Inc | Pipeline and Hazardous Materials Safety Administration |
Customer experience
ILICALC
ERG for iOS
In-app purchases
ILICALC
No in-app purchases
ERG for iOS
No in-app purchases
Questions
Is ILICALC free?
Is ERG for iOS free?
Which has better reviews, ILICALC or ERG for iOS?
Do ILICALC or ERG for iOS have ads?
Which is updated more often, ILICALC or ERG for iOS?
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