# Prepware CFI vs IFD Trainer Xp

The clearest difference is price: IFD Trainer Xp at Free against Prepware CFI's $9.99. IFD Trainer Xp also leads on rating (4.0 vs 2.4) and update cadence (every 2 months vs every 4 months). Prepware CFI's advantage is ratings volume (37 vs 3) and chart position (#171 vs unranked). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

IFD Trainer Xp is free to download; Prepware CFI costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IFD Trainer Xp holds the better App Store score, 4.0 against 2.4. That said, the two scores are not equally well evidenced: Prepware CFI has 37 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 32% of Prepware CFI's written reviews are positive against 40% of IFD Trainer Xp's.

Prepware CFI ships an update every 4 months, IFD Trainer Xp every 2 months. The most recent releases landed on September 28, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Prepware CFI | IFD Trainer Xp |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [2.4 (37 ratings)](https://appshunter.io/ios/app/prepware-cfi/id338889937/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/ifd-trainer-xp/id1580754515/reviews)** |
| Number of ratings | **37** | 3 |
| Positive reviews | 32.3% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Best chart rank | **#171** | — |
| Size | 31 MB | 152 MB |
| Requires iOS | 15.0 | **9.1** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [ASA](https://appshunter.io/developer/334278379) | [Avidyne](https://appshunter.io/developer/876452179) |

## What reviewers say

### Prepware CFI

[App page](https://appshunter.io/ios/app/prepware-cfi/id338889937)

**Currently charting:** #171 Top Paid · Education (US App Store)

Prepare for the FAA Knowledge Exam with this comprehensive study and test tool. It offers flashcard-style review of questions, answers, and explanations, allowing you to study by subject or take realistic practice tests.

**Highlights:** Flashcard-style review, Questions, answers, and explanations, Study by subject, Practice tests, Comprehensive preparation tool

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

**In-app purchases:** none


### IFD Trainer Xp

[App page](https://appshunter.io/ios/app/ifd-trainer-xp/id1580754515)

Learn to operate the Avidyne IFD system by connecting to Xplane 11. This app allows you to tune frequencies and fly approaches within your home simulator without needing any additional plugins. Familiarize yourself with the full capabilities of the IFD series.

**Highlights:** Connects to Xplane 11, No Xplane plugin required, Tune frequencies, Fly approaches, Familiarize with IFD series

**In-app purchases:** none


## Frequently asked questions

### Is Prepware CFI free?

Prepware CFI costs $9.99, with no in-app purchases.

### Is IFD Trainer Xp free?

IFD Trainer Xp is free to download, with no in-app purchases.

### Which has better reviews, Prepware CFI or IFD Trainer Xp?

IFD Trainer Xp is rated higher. Prepware CFI averages 2.4 out of 5 from 37 ratings, while IFD Trainer Xp averages 4.0 from 3 ratings.

### Do Prepware CFI or IFD Trainer Xp have ads?

Neither Prepware CFI nor IFD Trainer Xp shows ads.

### Which is updated more often, Prepware CFI or IFD Trainer Xp?

Prepware CFI ships an update every 4 months, and IFD Trainer Xp every 2 months. Most recently, Prepware CFI was updated on September 28, 2026 and IFD Trainer Xp on June 4, 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.*