# Controller Diagnostics vs Fighter CT

The clearest difference is update cadence: Fighter CT at every 10 days against Controller Diagnostics's every 5 weeks. Controller Diagnostics's advantage is iOS requirement (16.0 vs 18.0). 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.

Controller Diagnostics ships an update every 5 weeks, Fighter CT every 10 days. The most recent releases landed on November 7, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Controller Diagnostics | Fighter CT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fighter-ct/id6769940586/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | — | Free |
| Size | 2 MB | 130 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Lykketronic AS](https://appshunter.io/developer/1297619408) | [Aaron Lowe](https://appshunter.io/developer/1896702779) |

## What reviewers say

### Controller Diagnostics

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

**Features:** Vision Pro support

**In-app purchases:** none


### Fighter CT

[App page](https://appshunter.io/ios/app/fighter-ct/id6769940586)

This app allows gamers to test their controller inputs and reaction times in real-time. It displays button presses, analog stick positions, and trigger values, with a built-in reaction test for benchmarking performance. It supports a wide range of controllers and devices, offering precise measurements for fighting game enthusiasts.

**Highlights:** Real-time input monitoring, Drift detection, Raw input data display, Reaction time testing (ms & frames), ProMotion display support (up to 120 Hz), Accurate button labeling, Keyboard and mouse support

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

**In-app purchases:** none


## Frequently asked questions

### Is Controller Diagnostics free?

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

### Is Fighter CT free?

Fighter CT is free to download, with no in-app purchases.

### Do Controller Diagnostics or Fighter CT have ads?

Neither Controller Diagnostics nor Fighter CT shows ads.

### Which is updated more often, Controller Diagnostics or Fighter CT?

Controller Diagnostics ships an update every 5 weeks, and Fighter CT every 10 days. Most recently, Controller Diagnostics was updated on November 7, 2026 and Fighter CT on November 13, 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.*