Prepware Aviation Maintenance vs Part66
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prepware Aviation Maintenance
Prepare for your 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.
- FAA Knowledge Exam preparation
- Flashcard-style review
- Questions, answers, and explanations
- Study by subject
- Practice tests
Read full descriptionHide full description
Comprehensive preparation, study and test tool for the FAA Knowledge Exam. Flashcard style review of questions, answers and explanations included for you to study by subject or with a true-to-form practice test.
Part66
Prepare for EASA Part 66 aircraft maintenance license exams with sample tests and flashcards. Generate unlimited random exams and analyze results to identify weak areas. Covers modules relevant to B1.1 and potentially FAA licenses.
- Sample exams for EASA Part 66 modules
- Flashcards for purchased modules
- Unlimited random exam generation
- Exam timer with real-world time limits
- Analysis of results and weak point identification
- Email results for review
Read full descriptionHide full description
Part66-Engineer app is for prospective aircraft engineers who are studying for their EASA Part 66 basic maintenance licence; the app offers a full range of sample exams from Module 1 to Module 17 specifically tailored to meet the B1.1 licence. As of Version 3.0(24/11/2018); Module 7, Module 8, Module 9, Module 10, Module 15 and Module 17 have exams and flashcards available for purchase. Flashcards are now added for all the completed modules (7,8,9,10,15 & 17). Many questions are also similar to the FAR Part-65 standard for those engineers applying for their FAA license. Exams will be available for all modules in upcoming releases. Version 3.0 includes the option to download a question and flashcard bank and the user can generate unlimited random exams from the available questions. Each exam is set to the same standard as a 'real' EASA Part-147 supplied exam. Exam timer shows the real world time available for each exam and no questions are repeated. The user is able to email and analyze their results. The app will highlight weak points and give a suggested reading. Total questions available in this app = 5,472 questions. Total questions available per Module for this version: Module 1 = 32 Module 2 = 52 Module 3 = 52 Module 4 = 20 Module 5 = 50 Module 6 = 72 Module 7 = 844 questions & 780 flashcards. Module 8 = 239 questions & 170 flashcards. Module 9 = 290 questions & 242 flashcards. Module 10 = 426 questions & 304 flashcards. Module 11 = 140 Module 15 = 665 questions & 480 flashcards. Module 17 = 443 questions & 171 flashcards.
Screenshots
Verdict
The clearest difference is price: Part66 at Free against Prepware Aviation Maintenance's $9.99. Part66 also leads on rating (4.5 vs 3.8) and update cadence (every 2 months vs every 4 months). Prepware Aviation Maintenance's advantage is in-app purchases (none vs 11) and ratings volume (370 vs 10). On review sentiment, ads and device support 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
Part66 is free to download; Prepware Aviation Maintenance costs $9.99 up front. Part66 sells 11 one-off in-app purchases. Prepware Aviation Maintenance asks for nothing beyond the download.
Part66 holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Prepware Aviation Maintenance has 370 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 53% of Prepware Aviation Maintenance's written reviews are positive against 60% of Part66's.
Prepware Aviation Maintenance ships an update every 4 months, Part66 every 2 months. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.
| Parameter | Prepware Aviation Maintenance | Part66 |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.8 (370 ratings) | 4.5 (10 ratings) — better |
| Positive reviews | 53.0% of reviews | 60.0% of reviews — better |
| Number of ratings | 370 — better | 10 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #7 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 10.3 — better |
| Further details — not scored | ||
| Size | 15 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | ASA | DAVID SOUTHERN |
Customer experience
Prepware Aviation Maintenance
Part66
Bugs and requests
Prepware Aviation Maintenance
Reported bugs
4 issues- Incorrect Answers Marked as Correct
- Grading and Exiting Issues
- Inconsistent Question Formatting Across Platforms
- Lag and Freezing on Newer Devices
Requested features
5 requests- Randomize Answer Order
- Separate Missed Questions
- Ability to Create Custom Quizzes
- Improved Reporting and Analytics
- Accessibility Improvements for Colorblind Users
Part66
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Prepware Aviation Maintenance
No in-app purchases
Part66
- Module 10 Exam 2$0.99
- module 10 Exam 3$0.99
- Module 15 Exam 2$0.99
Show 8 moreShow fewer
- Module 7 Exam 2$0.99
- Module 8 Exam 2$0.99
- Module 8 Exam 3$0.99
- Module 8 Bank = 409 Questions.$7.99
- Module 17 Full Bank = 614 Q$8.99
- Module 10 Bank. 730 Questions.$10.99
- Module 15 Full Bank = 1,129 Q$11.99
- Module 7 Bank = 1,624 Question$11.99
Questions
Is Prepware Aviation Maintenance free?
Is Part66 free?
Which has better reviews, Prepware Aviation Maintenance or Part66?
Do Prepware Aviation Maintenance or Part66 have ads?
Which is updated more often, Prepware Aviation Maintenance or Part66?
Other comparisons
