Gauge: A&P Mechanic Prep
General, Airframe & Powerplant
About
Prepare for FAA Aviation Mechanic knowledge tests with lessons, practice questions, and study examples. Access general knowledge for free, with optional one-time purchases for Airframe and Powerplant sections. Study offline with bundled materials.
What's New in Gauge
1.0.2
October 19, 2026
Practice-form subject counts now stay within the FAA's published percentage ranges. Study calculations and legacy Part 23 examples now state their assumptions and applicability more clearly. General practice access, session controls, reminders and formula-result validation have also been improved.
MoreSubscriptions & In-App Purchases
$14.99
Full Unlock
Unlocks Airframe and Powerplant in full.
Developer apps
FAQ
Is Gauge free to use?
The General knowledge section of Gauge is completely free, offering 35 lessons and a question bank. Formula/reference tools and some Airframe/Powerplant practice questions are also available without purchase. Additional content requires a one-time purchase.
What is the cost of Gauge's full access?
Gauge offers a one-time, non-consumable purchase for full access to Airframe and Powerplant lessons, question banks, and timed forms. The exact price will be displayed in your App Store region before you buy.
Does Gauge require an account?
No, Gauge does not require an account to use its features, including the free General knowledge section and any purchased content. This allows for immediate study without registration.
Can I study offline with Gauge?
Yes, bundled study material and formula/reference tools within Gauge can be used offline. This feature allows for flexible studying without a constant internet connection.
Does Gauge offer certifications?
Gauge is an independent study aid designed to help you prepare for FAA knowledge tests. It does not issue certifications itself; you must still take and pass official FAA examinations.
How often is Gauge updated?
The latest version of Gauge is 1.0.2, and it was last updated on October 19, 2026. While specific update frequency isn't detailed, this indicates recent development activity.
What devices does Gauge support?
Gauge is available for both iPhone and iPad, making it accessible on common Apple mobile devices. This broad compatibility allows for convenient study across different platforms.
What is the age rating for Gauge?
Gauge has an age rating of 4+, indicating it is suitable for users of all ages. This is common for educational applications that do not contain mature content.