# Clegg Control vs Controller Diagnostics

The clearest difference is update cadence: Controller Diagnostics at every 5 weeks against Clegg Control's every 2 months. On price, ads, 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.

Clegg Control ships an update every 2 months, Controller Diagnostics every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Clegg Control | Controller Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/clegg-control/id1439467147/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 27 MB | 2 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lafayette Instrument Company, Inc.](https://appshunter.io/developer/335029582) | [Lykketronic AS](https://appshunter.io/developer/1297619408) |

## What reviewers say

### Clegg Control

[App page](https://appshunter.io/ios/app/clegg-control/id1439467147)

This app replaces a physical handheld device for performing tests. It offers modes for quick testing with GPS mapping or advanced testing with preset locations. Data can be stored, viewed by site and date, and easily exported for further analysis.

**Highlights:** Replaces physical handheld device, Quick Testing mode with GPS mapping, Advanced Testing mode with preset sites, Store and view data by test site/date, Simple data export for analysis

**In-app purchases:** none


### Controller Diagnostics

[App page](https://appshunter.io/ios/app/controller-diagnostics/id6444090201)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Clegg Control free?

Clegg Control is free to download, with no in-app purchases.

### Is Controller Diagnostics free?

Controller Diagnostics is free to download, with no in-app purchases.

### Do Clegg Control or Controller Diagnostics have ads?

Neither Clegg Control nor Controller Diagnostics shows ads.

### Which is updated more often, Clegg Control or Controller Diagnostics?

Clegg Control ships an update every 2 months, and Controller Diagnostics every 5 weeks. Most recently, Clegg Control was updated on November 2, 2026 and Controller Diagnostics on November 3, 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.*