FAA IA Knowledge Test Prep vs Flight Test X20
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FAA IA Knowledge Test Prep
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.
- 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
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The Inspection Authorization Knowledge Test Prep app is a great resource to test yourself on the hundreds of possible IA specific questions that you may see on your FAA Knowledge Test. Our goal is to provide you with the largest, most current, pool of IA questions. Give yourself every possible advantage! Remember, the actual exam will also test you on skills you would have learned as an A&P mechanic so its also recommended to review our General, Airframe and Powerplant Knowledge Test Prep Apps. The questions from the IA exam is will refer you to excerpts of selected advisory circulars, airworthiness directives, Code of Federal Regulations, type certificate data sheets, aircraft specifications, FAA orders, and forms. Since these documents are provided for free in PDF format from the FAA, they are not included to keep the app’s file size as small as possible. The Computer Testing Supplement for Inspection Authorization is available at https://www.faa.gov/training_testing/testing/supplements/media/FAA-CT-8080-8D.pdf. Features: • Simple to use interface. • Scores, the date and time taken for quizzes and tests are saved to keep track of your progress. • Questions and answer choices are random. • Optional sound effects for selected answers in Quiz Mode. • Shocks for iPhone. Answer incorrectly and feel your iPhone vibrate! (This can be turned on and off.) • No internet connection required. Modes: Quiz Mode - While taking a quiz, correct answers you choose are shown in green while incorrect ones are shown in red. Test Mode - Simulates the test you are going to take at a FAA Knowledge Test Center. In this mode, you are asked 50 questions that are pulled from the question bank. Study Mode - Here you can read all the questions with only the associated correct answers!
Flight Test X20
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.
- FAA knowledge test preparation
- Pilot study course
- Dispatcher study course
- Instrument rating preparation
- Instructor written test prep
- ATP written test prep
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Flight Test X20 is Sheppard Air's latest student study course learning platform for FAA knowledge tests. It allows those students studying for pilot, dispatcher, instrument rating, instructor, flight engineer, ATP, and interviewee written tests to do their top-off preparation for the final knowledge test.
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Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | FAA IA Knowledge Test Prep | Flight Test X20 |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 2.0 (3 ratings) | 3.9 (95 ratings) — better |
| Positive reviews | 11.1% of reviews | 60.0% of reviews — better |
| Number of ratings | 3 | 95 — better |
| Update frequency | Every 14 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 12 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Bravo Zulu Apps LLC | Sheppard Air, Inc. |
Customer experience
FAA IA Knowledge Test Prep
Flight Test X20
In-app purchases
FAA IA Knowledge Test Prep
No in-app purchases
Flight Test X20
No in-app purchases
Questions
Is FAA IA Knowledge Test Prep free?
Is Flight Test X20 free?
Which has better reviews, FAA IA Knowledge Test Prep or Flight Test X20?
Do FAA IA Knowledge Test Prep or Flight Test X20 have ads?
Which is updated more often, FAA IA Knowledge Test Prep or Flight Test X20?
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