# Cathodic Protection Calc — Anode & Corrosion Sizing

> Anode & Corrosion Sizing (iPhone/iPad app by Shanghai Sheyuan Network Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/cathodic-protection-calc/id6761744980 (this page in markdown: same URL + `.md`)
- Developer: [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858)
- Category: Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-04-08
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/cathodic-protection-calc/id6761744980/reviews.md

## What is Cathodic Protection Calc?

How many anodes does your pipeline or tank actually need? Stop over-designing cathodic protection systems with spreadsheet guesswork. Cathodic Protection Calc sizes your sacrificial anode system in seconds using real engineering inputs.

Enter surface area, coating efficiency, current density, anode type, and design life. Get total protection current, required anode weight, number of anodes, and spacing — all calculated to industry standards.

WHAT IT CALCULATES:
- Total protection current (mA and Amps)
- Bare surface area from coating efficiency
- Required total anode weight for design life
- Number of anodes based on typical anode size
- Anode spacing across the structure

STRUCTURE TYPES:
- Buried pipeline
- Storage tank bottom
- Marine structure
- Wharf and dock pilings

ANODE TYPES SUPPORTED:
- Zinc — standard for marine and soil
- Magnesium — higher driving voltage for soil
- Aluminum — lightweight marine applications
- Each with capacity (Ah/lb) and utilization factor

INPUTS:
- Surface area (sq ft)
- Coating efficiency (%)
- Current density (mA/sq ft)
- Anode type selection
- Design life (years)

Built for corrosion engineers, pipeline operators, and CP technicians. Works completely offline — no internet required.

## Chart rankings

- #196 in Top Paid · Utilities (US App Store)


## Version history (last 3 releases)

### 1.0.3 — 2026-06-27

Added a More Pro Tools section to discover related field calculators.

### 1.0.2 — 2026-04-14

Bug fixes and performance improvements.

### 1.0.1 — 2026-04-08

No release notes.

## More apps by Shanghai Sheyuan Network Technology Co., Ltd.

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- [Concrete Block Wall Est](https://appshunter.io/ios/app/concrete-block-wall-est/id6760607814)

All apps by Shanghai Sheyuan Network Technology Co., Ltd.: https://appshunter.io/developer/1560626858

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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 2026-08-23.*