# CP Design Estimator

> Cathodic protection design and calculation utility for engineers. (iPhone/iPad app by Jamal Safa.)

- Source: https://appshunter.io/ios/app/cp-design-estimator/id470013892 (this page in markdown: same URL + `.md`)
- Developer: [Jamal Safa](https://appshunter.io/developer/1507634528)
- Category: Utilities
- Price: $4.99
- Rating: 4.00/5 from 1 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 16 MB
- Languages: English
- Released: 2011-10-08
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/cp-design-estimator/id470013892/reviews.md

## What is CP Design Estimator?

Cathodic Protection Design Estimator Pro.

Now Powered by "GMC Electrical, Inc"


AVAILABLE IN IMPERIAL AND METRIC UNITS

For all you Cathodic Protection Needs.

Ohm's Law
-Voltage
-Current
-Resistance
-Parallel Resistance
-Power

Galvanic
-Magnesium Anode
-Zinc Anode
-Aluminum Anode
-Practical Galvanic Series
-Ohm Shunt Conversion

Impress Current
-Cell Potential Adjustment
-Shunt Reading
-Single Vertical Anode
-Multiple Vertical Anodes
-Multiple Horizontally Anodes
-Deep Anode Ground Bed
-Total Circuit Resistance
-Rectifier Efficiency
-AC Output Wattage
-DC Output Wattage
-Number of Anodes Required (Current Discharge)

General Equations
-Current requirement
-Number of Anodes Required
-Surface area of a pipe
-Surface area of a tank
-Area of a Circle
-Area of a Triangle
-Area of a Rectangle
-Cable Resistance
-Linear Interpolation
-Linear Extrapolation

Disclaimer:

iApp-Production and GMC Electrical, Inc does not accept any responsibility for the use of these equations and or charts that are discuss within this software application.  While iApp-Production and GMC Electrical, Inc. makes every effort to provide accurate and complete infomation.  The information is advisory only and the use of the equations and charts are solely at risk of the user.

## Key features

- Ohm's Law calculations
- Galvanic anode estimations
- Impressed current design tools
- General engineering equations
- Imperial and metric unit support
- Pipe and tank surface area calculation

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/cp-design-estimator/id470013892/reviews.md

### 4/5 — Great App for Cathodic protection technicians

*2015-05-10, version 2.2*

This is a great App for calculations dealing with Corrosion mitigation. The only downside is it would be beneficial to see the use of negative values added to the Linear interpolation/extrapolation models to mimic negative values used in an Evans diagram.

### 5/5 — Very useful

*2012-02-15, version 1.1*

Love what this does - very helpful indeed

### 5/5 — Engineer

*2012-02-15, version 1.1*

Nice and very useful application

### 5/5 — Engineer

*2012-01-26, version 1.1*

Love it! 
Great app deserves 5 star

### 5/5 — Great corrosion app!!!!

*2012-01-12, version 1.1*

The impress current equations are really helpful.  I also like the Magnesium Anode life equation.

### 5/5 — Finally, a useful corrosion app.

*2012-01-07, version 1.0*

The must have corrosion app. Its Easy to use and has all the equations that I normally use.

## Frequently asked questions about CP Design Estimator

### What is CP Design Estimator used for?

CP Design Estimator is a utility application designed for engineers and technicians to perform various calculations related to cathodic protection design. It covers Ohm's Law, galvanic anode estimations, impressed current designs, and general engineering equations.

### What units does CP Design Estimator support?

CP Design Estimator supports both imperial and metric units, making it versatile for users working in different regions or adhering to specific project standards.

### What types of calculations are included in CP Design Estimator?

The app includes calculations for Voltage, Current, Resistance, Parallel Resistance, Power, Magnesium Anode, Zinc Anode, Aluminum Anode, Cell Potential Adjustment, Shunt Reading, and Total Circuit Resistance, among others.

### Is CP Design Estimator suitable for calculating surface areas?

Yes, CP Design Estimator includes general equations for calculating the surface area of pipes, tanks, circles, and rectangles, which are useful for various design aspects.

### What is the pricing for CP Design Estimator?

CP Design Estimator is a paid application, available for purchase at $4.99. There are no mentions of subscriptions or in-app purchases.

### How often is CP Design Estimator updated?

The latest version of CP Design Estimator is 2.3, which was last updated on November 4, 2018. Users can expect updates to address bugs and potentially add new features over time.

### What is the age rating for CP Design Estimator?

CP Design Estimator has an age rating of 4+, indicating it is suitable for users of all ages. This suggests no mature content is present within the application.

### Does CP Design Estimator have ads?

The provided data does not indicate the presence of advertisements in CP Design Estimator. It is a paid application, suggesting an ad-free experience.

## Version history (last 1 release)

### 2.3 — 2018-11-04

Updated the app to meet the new IOS standards.

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## More apps by Jamal Safa

- [TVM Manager Free](https://appshunter.io/ios/app/tvm-manager-free/id1000320083)
- [MamaG](https://appshunter.io/ios/app/mamag/id1508783232)

All apps by Jamal Safa: https://appshunter.io/developer/1507634528

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*