# FCD vs Morse Alchemist

The clearest difference is update cadence: Morse Alchemist at every 6 days against FCD's every 7 months. FCD's advantage is iOS requirement (14.4 vs 17.6). 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.

FCD ships an update every 7 months, Morse Alchemist every 6 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | FCD | Morse Alchemist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fcd-tr1-adapter-application/id1438537309/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 2 MB | 1 MB |
| Requires iOS | **14.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ross Morrison](https://appshunter.io/developer/1438537308) | [Zaw Win Myat](https://appshunter.io/developer/1800881321) |

## 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


### Morse Alchemist

[App page](https://appshunter.io/ios/app/morse-alchemist/id6743083075)

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

**In-app purchases:** none


## Frequently asked questions

### Is FCD free?

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

### Is Morse Alchemist free?

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

### Do FCD or Morse Alchemist have ads?

Neither FCD nor Morse Alchemist shows ads.

### Which is updated more often, FCD or Morse Alchemist?

FCD ships an update every 7 months, and Morse Alchemist every 6 days. Most recently, FCD was updated on November 2, 2026 and Morse Alchemist on October 30, 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.*