Comparison

Pilot vs Quad Defects

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

Head to head
About

Pilot

This reference app provides flight crews with fast, offline access to over 14,000 aviation abbreviations and acronyms. It includes organized lists for general terms, datalink messages, airports, aircraft registrations, and airlines, drawing from numerous international sources.

Highlights
  • Offline access to 14,000+ aviation abbreviations
  • Organized lists: general, CPDLC, airports, registrations, airlines
  • Covers FAA, NOTAM, EASA, Jeppesen, and more
  • Fast and intuitive search functionality
  • Created by a pilot for pilots
  • Optimized for flight planning and in-flight reference
Features
Read full description

Pilot-Abbr – Aviation Abbreviations for Flight Crews Pilot-Abbr is a powerful reference app designed for professional pilots, providing fast, offline access to over 14,000 aviation abbreviations and acronyms from international sources. Main Features: Five Organized Lists: • Abbreviations – General aviation terms used by pilots. • CPDLC Messages – Commonly used datalink message elements. • Airports – IATA and ICAO codes, airport name, city, and flag. • Registrations – Aircraft registration codes by country. • Airlines – IATA and ICAO codes, airline name, and country. Sources Include: • FAA Abbreviations • U.S. Aeronautical Contractions • NOTAM Abbreviations • Canadian AIM • Performance-Based Navigation (PBN) • Jeppesen • Boeing Acronyms • EASA Acronyms • Dangerous Goods and Ground Handling codes • And more Whether you're decoding a NOTAM, preparing for departure, or reviewing CPDLC messages, Pilot-Abbr gives you the reference you need — anytime, even offline. Why Pilots Use Pilot-Abbr: • Created by a pilot, for pilots • Fast, intuitive search • Covers operational, regulatory, and airline-specific terms • Optimized for flight planning, briefing, and in-flight reference Subscription Details • $4.99/year, auto-renewable • Subscription renews automatically unless canceled at least 24 hours before the end of the current period • Payment will be charged to your iTunes account at confirmation of purchase • Manage or cancel your subscription in your iTunes account settings • No partial refunds Legal • Privacy Policy & Terms of Service: https://villarroel98.wixsite.com/hazmat-pjv/about • Apple EULA (End User License Agreement): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Pilot-Abbr — The most complete aviation abbreviation tool on the App Store. Essential for every flight crew.

About

Quad Defects

Read full description

Quad Defects is designed to streamline maintenance, quality checks, and registering defects. Easily capture, document, and upload images or videos of part defects such as wear, dents, or breakdowns. Update and access work instruction videos for specific parts or processes, ensuring standardized operations and clear communication between field staff and supervisors.

Screenshots

Pilot4 screens
Quad Defects4 screens

Verdict

The call

The clearest difference is in-app purchases: Quad Defects at none against Pilot's 1. Quad Defects also leads on update cadence (daily vs every 31 months) and iOS requirement (12.0 vs 15.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Pilot sells 1 in-app purchase, starting at $4.99 per year. Quad Defects asks for nothing beyond the download.

UpkeepUpdate frequency

Pilot ships an update every 31 months, Quad Defects daily. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
Pilot versus Quad Defects: the parameters behind the verdict, then further details
ParameterPilotQuad Defects
PriceFreeFree
Rating4.0 (4 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings4 — better—
Update frequencyEvery 31 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size10 MB32 MB
Age rating4+17+
DeveloperPedro Jose Villarroel CuevasAutosys Industrial Solutions Private Limited

In-app purchases

1 purchases

Pilot

Subscriptions1
  • PilotAbbr Subscription$4.991 Year
None

Quad Defects

No in-app purchases

Questions

Is Pilot free?
Pilot is free to download, with in-app purchases available.
Is Quad Defects free?
Quad Defects is free to download, with no in-app purchases.
Do Pilot or Quad Defects have ads?
Neither Pilot nor Quad Defects shows ads.
Which is updated more often, Pilot or Quad Defects?
Pilot ships an update every 31 months, and Quad Defects daily. Most recently, Pilot was updated on October 11, 2026 and Quad Defects on October 16, 2026.

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