# FaultFinder — Electrical Diagnostic Tool

> Electrical Diagnostic Tool (iPhone/iPad app by Eoin Robotham.)

- Source: https://appshunter.io/ios/app/faultfinder/id6761668178 (this page in markdown: same URL + `.md`)
- Developer: [Eoin Robotham](https://appshunter.io/developer/1890731711)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 9 MB
- Languages: American English
- Released: 2026-04-24
- Data updated: 2026-07-11
- User reviews in markdown: https://appshunter.io/ios/app/faultfinder/id6761668178/reviews.md

## What is FaultFinder?

FREE FEATURES:                                          
• 10 core diagnostic flows — RCD/RCBO tripping, MCB tripping, no power, lighting faults, socket faults, intermittent faults, 
  earth faults, neutral faults, two-way switching, nuisance tripping                                                              
  
PRO UPGRADE (one-time purchase):                                                                                              
• Testing Faults — 10 flows for abnormal test results   
• Panel & Control Faults — contactors, CTUs, hold circuits, backfeed                                                          
• Heating Controls — 14 flows for programmers, stats, zone valves, wiring centres                                             
• Readings Checker — instant pass/fail for Zs, IR, RCD trip, and Ze values against IS 10101 / BS 7671 tables                  
                                                                                                                                  
BUILT FOR THE FIELD:                                                                                                          
• Works fully offline — no internet required                                                                                  
• Dark UI designed for site use                                                                                               
• Supports Ireland (IS 10101) and UK (BS 7671) standards
• No account, no sign-up, no data collection

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Faultfinder Pro | $7.99 | one-time |



## Version history (last 1 release)

### 1.0.1 — 2026-04-24

No release notes.

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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 2026-07-11.*