# Fault Current Calculator (PFC) vs Megger Link

The clearest difference is monetization model: Megger Link at free against Fault Current Calculator (PFC)'s paid. Megger Link also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). Fault Current Calculator (PFC)'s advantage is review sentiment (33% vs 20%). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Fault Current Calculator (PFC) ships an update every 14 months, Megger Link every 15 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Fault Current Calculator (PFC) | Megger Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/fault-current-calculator-pfc/id577611194/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **33.3% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 14 months** | Every 15 months |
| Monetization | Paid | **Free** |
| Size | 10 MB | 9 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pro Certs Software Ltd](https://appshunter.io/developer/444429696) | [Megger](https://appshunter.io/developer/557595194) |

## What reviewers say

### Fault Current Calculator (PFC)

[App page](https://appshunter.io/ios/app/fault-current-calculator-pfc/id577611194)

This app calculates prospective fault current (PFC) in kA and Amps for single and three-phase circuits. It allows users to input any two values (voltage, earth loop impedance, or PFC) to determine the third, aiding in selecting appropriate circuit breaker ratings.

**Highlights:** Calculate PFC from Zs/Ze and Voltage, Calculate Zs/Ze from Voltage and PFC, Calculate Voltage from PFC and Zs/Ze, PFC calculation in kA and Amps, Single and three-phase support, Input any two values to calculate the third

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

**In-app purchases:** none


### Megger Link

[App page](https://appshunter.io/ios/app/megger-link/id1491183642)

View instrument readings digitally and graphically on your smartphone or tablet. Start data logging or download saved files directly from the instrument. Export data in CSV format for easy off-site analysis and reporting.

**Highlights:** Remote live reading display, Graphical trend viewing, Data file download, CSV data export, Initiate data logging

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fault Current Calculator (PFC) free?

Fault Current Calculator (PFC) is free to download, with no in-app purchases.

### Is Megger Link free?

Megger Link is free to download, with no in-app purchases.

### Do Fault Current Calculator (PFC) or Megger Link have ads?

Fault Current Calculator (PFC) shows ads; Megger Link does not.

### Which is updated more often, Fault Current Calculator (PFC) or Megger Link?

Fault Current Calculator (PFC) ships an update every 14 months, and Megger Link every 15 months. Most recently, Fault Current Calculator (PFC) was updated on October 14, 2026 and Megger Link on October 5, 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.*