# FAA IA Knowledge Test Prep vs Flight Test X20

The clearest difference is review sentiment: Flight Test X20 at 60% against FAA IA Knowledge Test Prep's 11%. Flight Test X20 also leads on price (Free vs $9.99) and rating (3.9 vs 2.0). FAA IA Knowledge Test Prep's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 14.0). On ads and in-app purchases there is nothing between them.

Flight Test X20 is free to download; FAA IA Knowledge Test Prep costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flight Test X20 holds the better App Store score, 3.9 against 2.0. That said, the two scores are not equally well evidenced: Flight Test X20 has 95 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 11% of FAA IA Knowledge Test Prep's written reviews are positive against 60% of Flight Test X20's.

FAA IA Knowledge Test Prep ships an update every 14 months, Flight Test X20 every 5 weeks. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | FAA IA Knowledge Test Prep | Flight Test X20 |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/faa-ia-knowledge-test-prep/id1446964317/reviews) | **[3.9 (95 ratings)](https://appshunter.io/ios/app/flight-test-x20/id1501097608/reviews)** |
| Number of ratings | 3 | **95** |
| Positive reviews | 11.1% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 12 MB | 25 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bravo Zulu Apps LLC](https://appshunter.io/developer/1000879252) | [Sheppard Air, Inc.](https://appshunter.io/developer/595077420) |

## What reviewers say

### FAA IA Knowledge Test Prep

[App page](https://appshunter.io/ios/app/faa-ia-knowledge-test-prep/id1446964317)

Prepare for your FAA Inspection Authorization Knowledge Test with a comprehensive question bank. This app offers quiz, test, and study modes to track your progress and familiarize you with exam-style questions. It requires no internet connection for offline study.

**Highlights:** Extensive question bank for IA exam, Quiz, Test, and Study modes, Progress tracking with scores and dates, Randomized questions and answers, Offline functionality, Optional sound and vibration feedback

**In-app purchases:** none


### Flight Test X20

[App page](https://appshunter.io/ios/app/flight-test-x20/id1501097608)

Prepare for FAA knowledge tests with this comprehensive study platform. It offers top-off preparation for various pilot and aviation professional written exams, including instrument rating and ATP.

**Highlights:** FAA knowledge test preparation, Pilot study course, Dispatcher study course, Instrument rating preparation, Instructor written test prep, ATP written test prep

**In-app purchases:** none


## Frequently asked questions

### Is FAA IA Knowledge Test Prep free?

FAA IA Knowledge Test Prep costs $9.99, with no in-app purchases.

### Is Flight Test X20 free?

Flight Test X20 is free to download, with no in-app purchases.

### Which has better reviews, FAA IA Knowledge Test Prep or Flight Test X20?

Flight Test X20 is rated higher. FAA IA Knowledge Test Prep averages 2.0 out of 5 from 3 ratings, while Flight Test X20 averages 3.9 from 95 ratings.

### Do FAA IA Knowledge Test Prep or Flight Test X20 have ads?

Neither FAA IA Knowledge Test Prep nor Flight Test X20 shows ads.

### Which is updated more often, FAA IA Knowledge Test Prep or Flight Test X20?

FAA IA Knowledge Test Prep ships an update every 14 months, and Flight Test X20 every 5 weeks. Most recently, FAA IA Knowledge Test Prep was updated on October 21, 2026 and Flight Test X20 on October 20, 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.*