# NPMS Public Viewer vs Cathodic Protection (CCPTools)

The clearest difference is review sentiment: Cathodic Protection (CCPTools) at 100% against NPMS Public Viewer's 40%. Cathodic Protection (CCPTools) also leads on rating (5.0 vs 4.0). NPMS Public Viewer's advantage is ratings volume (4 vs 1) and device support. On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cathodic Protection (CCPTools) holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 40% of NPMS Public Viewer's written reviews are positive against 100% of Cathodic Protection (CCPTools)'s.

## The numbers

| Metric | NPMS Public Viewer | Cathodic Protection (CCPTools) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/npms-public-viewer/id1232277603/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cathodic-protection-ccptools/id6502667848/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Free | Free |
| Size | 2 MB | 45 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [Pipeline and Hazardous Materials Safety Administration](https://appshunter.io/developer/954888820) | [Fatemeh Moradhosseini](https://appshunter.io/developer/1746395305) |

## What reviewers say

### NPMS Public Viewer

[App page](https://appshunter.io/ios/app/npms-public-viewer/id1232277603)

View maps of hazardous liquid and gas transmission pipelines. Discover pipeline operators, the materials they transport, and contact information. Locate pipelines by county, offshore area, or proximity to your current location.

**Highlights:** Hazardous pipeline maps, Operator identification, Material transported details, Contact information, Location-based search, County and offshore area selection

**In-app purchases:** none


### Cathodic Protection (CCPTools)

[App page](https://appshunter.io/ios/app/cathodic-protection-ccptools/id6502667848)

This app provides essential tools and information for cathodic protection and corrosion engineers. It covers materials, site surveys, design calculations, unit conversions, and a directory of industry companies. Stay updated with the latest industry news and products.

**Highlights:** Impressed current and sacrificial anode CP materials, CP site surveys, measurements, and data logging, Cathodic protection design calculations, Unit converters, Directory of CP and corrosion companies, Industry updates and new products

**In-app purchases:** none


## Frequently asked questions

### Is NPMS Public Viewer free?

NPMS Public Viewer is free to download, with no in-app purchases.

### Is Cathodic Protection (CCPTools) free?

Cathodic Protection (CCPTools) is free to download, with no in-app purchases.

### Which has better reviews, NPMS Public Viewer or Cathodic Protection (CCPTools)?

Cathodic Protection (CCPTools) is rated higher. NPMS Public Viewer averages 4.0 out of 5 from 4 ratings, while Cathodic Protection (CCPTools) averages 5.0 from 1 ratings.

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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.*