Comparison

Prepware Aviation Maintenance vs Ultrasonic Study Guide

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • FAA Knowledge Exam preparation
  • Flashcard-style review
  • Questions, answers, and explanations
  • Study by subject
  • Practice tests
Features
Read 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.

About

Ultrasonic Study Guide

Features
Read full description

Prepare for your Ultrasonic Testing Level 1, 2 or 3 certification exam with 641 practice questions written by an ASNT NDT Level III. Each question includes a detailed explanation so you learn why an answer is right, not just which one to pick. After each test, Review Missed Questions shows exactly what you got wrong and the reasoning behind the correct answer. STUDY BY LEVEL AND CATEGORY Level 1, Level 2 and Level 3 question banks 10 categories: Principles and Theory, Equipment and Materials, Techniques and Methods, Standardization and Calibration, Evaluation of Base Material, Evaluation of Welds and Bonded Structures, Discontinuity Detection and Evaluation, Variables Affecting Test Results, Advanced Techniques (Phased Array, TOFD), Procedures and Reporting Choose 10 to 150 questions per test BUILT FOR REAL EXAM PREP Answer choices balanced so you can’t guess from length or position Instant scoring with a full results breakdown Review every missed question with explanations Aligned with SNT-TC-1A and NAS410 body-of-knowledge topics GO FURTHER Online Training Academy UT training videos 5-year NDT Career Planner

Screenshots

Prepware Aviation Maintenance4 screens
Ultrasonic Study Guide4 screens

Verdict

The call

The clearest difference is price: Prepware Aviation Maintenance at $9.99 against Ultrasonic Study Guide's $14.99. Prepware Aviation Maintenance also leads on chart position (#4 vs unranked) and iOS requirement (15.0 vs 18.5). On update cadence, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Prepware Aviation Maintenance costs $9.99 and Ultrasonic Study Guide $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Prepware Aviation Maintenance ships an update every 4 months, Ultrasonic Study Guide every 7 months. The most recent releases landed on November 10, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 8 level
Prepware Aviation Maintenance versus Ultrasonic Study Guide: the parameters behind the verdict, then further details
ParameterPrepware Aviation MaintenanceUltrasonic Study Guide
Price$9.99 — better$14.99
Rating3.8 (373 ratings) — better—
Positive reviews53.0% of reviews—
Number of ratings373 — better—
Update frequencyEvery 4 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#4 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.5
Further details — not scored
Size15 MB3 MB
Age rating4+4+
DeveloperASASkaggs Media LLC

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

Ultrasonic Study Guide

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Prepware Aviation Maintenance

No in-app purchases

None

Ultrasonic Study Guide

No in-app purchases

Questions

Is Prepware Aviation Maintenance free?
Prepware Aviation Maintenance costs $9.99, with no in-app purchases.
Is Ultrasonic Study Guide free?
Ultrasonic Study Guide costs $14.99, with no in-app purchases.
Do Prepware Aviation Maintenance or Ultrasonic Study Guide have ads?
Neither Prepware Aviation Maintenance nor Ultrasonic Study Guide shows ads.
Which is updated more often, Prepware Aviation Maintenance or Ultrasonic Study Guide?
Prepware Aviation Maintenance ships an update every 4 months, and Ultrasonic Study Guide every 7 months. Most recently, Prepware Aviation Maintenance was updated on November 10, 2026 and Ultrasonic Study Guide on October 30, 2026.

Other comparisons