# Prepware CFI vs IFD Trainer

The clearest difference is price: IFD Trainer at Free against Prepware CFI's $9.99. IFD Trainer also leads on rating (3.0 vs 2.4) and iOS requirement (13.0 vs 15.0). Prepware CFI's advantage is ads (none vs shown) and device support (3 vs 1). On review sentiment, ratings volume, update cadence and in-app purchases there is nothing between them.

IFD Trainer 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 holds the better App Store score, 3.0 against 2.4. Both are backed by a comparable volume of ratings — 37 and 88 respectively. Written reviews point the same way: 32% of Prepware CFI's written reviews are positive against 36% of IFD Trainer's.

Prepware CFI ships an update every 4 months, IFD Trainer every 2 months. The most recent releases landed on September 28, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Prepware CFI | IFD Trainer |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [2.4 (37 ratings)](https://appshunter.io/ios/app/prepware-cfi/id338889937/reviews) | **[3.0 (88 ratings)](https://appshunter.io/ios/app/ifd-trainer/id1170084784/reviews)** |
| Number of ratings | 37 | **88** |
| Positive reviews | 32.3% of reviews | **35.7% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 31 MB | 121 MB |
| Requires iOS | 15.0 | **13.0** |
| 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)

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

[App page](https://appshunter.io/ios/app/ifd-trainer/id1170084784)

This flight simulator offers a realistic environment to explore Avidyne's Flight Management Systems. It allows users to familiarize themselves with various IFD models, practice flight planning, and integrate with a companion app for a comprehensive home-based training experience.

**Highlights:** Realistic flight simulation environment, Explore Avidyne IFD models, Practice flight plan entry and changes, Integrate with IFD100 app, Access free demo navigation and map data, Use qualified Jeppesen data

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning IFD
- 👍 Excellent representation of IFD
- 👍 Useful for practice
- 👍 Familiarity builds competence
- 👍 Good for pre-flight planning

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Does not load correctly
- 🐛 Poor graphics
- 🐛 No databases
- 🐛 Difficult to use

**Reported bugs**

- Crashes on startup
- Crashes frequently
- Does not load correctly
- Poor graphics
- No databases

**Requested features**

- Android version availability
- PC version availability
- Altitude control on Mac
- Saving user-defined origin point
- Ability to use as IFD440


## Frequently asked questions

### Is Prepware CFI free?

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

### Is IFD Trainer free?

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

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

IFD Trainer is rated higher. Prepware CFI averages 2.4 out of 5 from 37 ratings, while IFD Trainer averages 3.0 from 88 ratings.

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

IFD Trainer shows ads; Prepware CFI does not.

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

Prepware CFI ships an update every 4 months, and IFD Trainer every 2 months. Most recently, Prepware CFI was updated on September 28, 2026 and IFD Trainer on September 9, 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.*