# Vestas Doc vs ERG for iOS

The clearest difference is review sentiment: ERG for iOS at 100% against Vestas Doc's 30%. ERG for iOS also leads on rating (4.8 vs 1.9) and chart position (#111 vs unranked). On price, update cadence, ads and in-app purchases there is nothing between them.

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 1.9. Both are backed by a comparable volume of ratings — 18 and 64 respectively. Written reviews point the same way: 30% of Vestas Doc's written reviews are positive against 100% of ERG for iOS's.

Vestas Doc ships an update every 3 months, ERG for iOS every 4 months. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Vestas Doc | ERG for iOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (18 ratings)](https://appshunter.io/ios/app/vestas-doc/id1008148317/reviews) | **[4.8 (64 ratings)](https://appshunter.io/ios/app/erg-for-ios/id1597142669/reviews)** |
| Number of ratings | 18 | **64** |
| Positive reviews | 30.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | Free |
| Best chart rank | — | **#111** |
| Size | 143 MB | 27 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Vestas Wind Systems AS](https://appshunter.io/developer/385438202) | [Pipeline and Hazardous Materials Safety Administration](https://appshunter.io/developer/954888820) |

## What reviewers say

### Vestas Doc

[App page](https://appshunter.io/ios/app/vestas-doc/id1008148317)

Access and view comprehensive documentation for all Vestas products. Approved employees, partners, and subcontractors can apply for login credentials directly within the application.

**Highlights:** Browse Vestas product documentation, View documentation for all products, Login required for access, Apply for login within the app, Approved for employees, partners, and subcontractors

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ERG for iOS

[App page](https://appshunter.io/ios/app/erg-for-ios/id1597142669)

**Currently charting:** #111 Top Free · Reference (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Vestas Doc free?

Vestas Doc 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, Vestas Doc or ERG for iOS?

ERG for iOS is rated higher. Vestas Doc averages 1.9 out of 5 from 18 ratings, while ERG for iOS averages 4.8 from 64 ratings.

### Do Vestas Doc or ERG for iOS have ads?

Neither Vestas Doc nor ERG for iOS shows ads.

### Which is updated more often, Vestas Doc or ERG for iOS?

Vestas Doc ships an update every 3 months, and ERG for iOS every 4 months. Most recently, Vestas Doc was updated on October 8, 2026 and ERG for iOS on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*