# FCD vs Tracker Detector

The clearest difference is price: FCD at Free against Tracker Detector's $0.99. FCD also leads on iOS requirement (14.4 vs 17.6). Tracker Detector's advantage is update cadence (every 2 days vs every 7 months) and ratings volume (4 vs 1). On rating, ads, in-app purchases and device support there is nothing between them.

FCD is free to download; Tracker Detector costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for FCD against 5.0 for Tracker Detector. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

FCD ships an update every 7 months, Tracker Detector every 2 days. The most recent releases landed on September 8, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | FCD | Tracker Detector |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/fcd-tr1-adapter-application/id1438537309/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/tracker-detector/id6738701716/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | **Free** | Paid |
| Size | 2 MB | 7 MB |
| Requires iOS | **14.4** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Ross Morrison](https://appshunter.io/developer/1438537308) | [Jeremy Yablan](https://appshunter.io/developer/1781747583) |

## What reviewers say

### FCD

[App page](https://appshunter.io/ios/app/fcd-tr1-adapter-application/id1438537309)

This application calibrates engine gauges for turboprop aircraft using an iPad. It connects via Bluetooth to a specialized adapter plugged into the back of the gauges, allowing full control of calibration parameters and download of flight log data.

**Highlights:** iPad-based calibration, Bluetooth connectivity, Control calibration parameters, Download flight log data, Supports TR1 engine gauges

**Features:** macOS Compatibility

**In-app purchases:** none


### Tracker Detector

[App page](https://appshunter.io/ios/app/tracker-detector/id6738701716)

This app helps you detect and locate Bluetooth trackers that may be used to monitor your movements without consent. It offers real-time scanning, precision locating with signal strength monitoring, and smart alerts for new or following trackers. All data is stored locally for enhanced privacy.

**Highlights:** Real-time Bluetooth tracker scanning, Precision locator with signal strength, Smart alerts for new or following trackers, Device whitelisting for known trackers, Battery-efficient scanning algorithms, Local data storage for privacy

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FCD free?

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

### Is Tracker Detector free?

Tracker Detector costs $0.99, with no in-app purchases.

### Which has better reviews, FCD or Tracker Detector?

FCD and Tracker Detector are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do FCD or Tracker Detector have ads?

Neither FCD nor Tracker Detector shows ads.

### Which is updated more often, FCD or Tracker Detector?

FCD ships an update every 7 months, and Tracker Detector every 2 days. Most recently, FCD was updated on September 8, 2026 and Tracker Detector on September 16, 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.*