# FCD vs DeeUP

FCD and DeeUP are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, DeeUP every 9 months. The most recent releases landed on September 8, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | FCD | DeeUP |
| --- | --- | --- |
| 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 9 months |
| Monetization | Free | — |
| Size | 2 MB | 26 MB |
| Requires iOS | **14.4** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ross Morrison](https://appshunter.io/developer/1438537308) | [Wuxi Dilu Electronic Technology Co.,Ltd](https://appshunter.io/developer/1577495078) |

## 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


### DeeUP

[App page](https://appshunter.io/ios/app/deeup/id6670591716)

**In-app purchases:** none


## Frequently asked questions

### Is FCD free?

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

### Is DeeUP free?

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

### Do FCD or DeeUP have ads?

Neither FCD nor DeeUP shows ads.

### Which is updated more often, FCD or DeeUP?

FCD ships an update every 7 months, and DeeUP every 9 months. Most recently, FCD was updated on September 8, 2026 and DeeUP on September 17, 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.*