# Charles Proxy vs Fault Finder Pro

The clearest difference is review sentiment: Fault Finder Pro at 100% against Charles Proxy's 52%. Fault Finder Pro also leads on rating (5.0 vs 4.0) and update cadence (every 3 weeks vs every 2 months). Charles Proxy's advantage is ratings volume (189 vs 2). On ads, in-app purchases, monetization model and device support there is nothing between them.

Charles Proxy costs $8.99 and Fault Finder Pro $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fault Finder Pro holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Charles Proxy has 189 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 52% of Charles Proxy's written reviews are positive against 100% of Fault Finder Pro's.

Charles Proxy ships an update every 2 months, Fault Finder Pro every 3 weeks. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Charles Proxy | Fault Finder Pro |
| --- | --- | --- |
| Price | $8.99 | **$7.99** |
| Rating | [4.0 (189 ratings)](https://appshunter.io/ios/app/charles-proxy/id1134218562/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fault-finder-pro/id6785652430/reviews)** |
| Number of ratings | **189** | 2 |
| Positive reviews | 51.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 20 MB | 20 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [XK72 Limited](https://appshunter.io/developer/284393209) | [Richard Johnson](https://appshunter.io/developer/6785652433) |

## What reviewers say

### Charles Proxy

[App page](https://appshunter.io/ios/app/charles-proxy/id1134218562)

Capture and inspect network requests and responses directly on your iOS device. Debug networking issues without needing a computer. View detailed metadata, headers, and bodies, and even transfer sessions to a desktop for further analysis.

**Highlights:** Capture network requests and responses, Inspect metadata, headers, and bodies, SSL Proxying for plain text viewing, Measure network performance, Block requests to specific hosts, DNS spoofing

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great tool for developers
- 👍 Useful for debugging
- 🔒 SSL proxying works
- 💡 Convenient to use on mobile

**What reviewers complain about**

- 🐛 Stability issues, crashes
- 🐛 SSL certificate not trusted
- 🐛 Doesn't handle gzip compression
- 🐛 Slow performance compared to desktop

**Reported bugs**

- Doesn't work with latest iOS versions
- Fails to export sessions frequently
- Incompatible with apps using VPN
- Large JSON bodies not displayed properly

**Requested features**

- Add ability to edit and replay requests
- Improve JSON viewer and formatting
- Add support for WebSockets
- Provide option to map to local
- Add scripting and breakpoint features


### Fault Finder Pro

[App page](https://appshunter.io/ios/app/fault-finder-pro/id6785652430)

A comprehensive troubleshooting reference for industrial electricians and maintenance technicians. Quickly diagnose common electrical problems with step-by-step guides and a searchable database of fault codes. Includes essential electrical reference tables and calculators.

**Highlights:** Step-by-step fault diagnosis, Searchable fault code database, NEC wire sizing table, Voltage drop calculator, Ohm's Law calculator, Motor nameplate decoder

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

**In-app purchases:** none


## Frequently asked questions

### Is Charles Proxy free?

Charles Proxy costs $8.99, with no in-app purchases.

### Is Fault Finder Pro free?

Fault Finder Pro costs $7.99, with no in-app purchases.

### Which has better reviews, Charles Proxy or Fault Finder Pro?

Fault Finder Pro is rated higher. Charles Proxy averages 4.0 out of 5 from 189 ratings, while Fault Finder Pro averages 5.0 from 2 ratings.

### Do Charles Proxy or Fault Finder Pro have ads?

Neither Charles Proxy nor Fault Finder Pro shows ads.

### Which is updated more often, Charles Proxy or Fault Finder Pro?

Charles Proxy ships an update every 2 months, and Fault Finder Pro every 3 weeks. Most recently, Charles Proxy was updated on November 11, 2026 and Fault Finder Pro on November 6, 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.*