Airliners Encyclopedia vs ADP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Airliners Encyclopedia
An extensive offline encyclopedia detailing airliners with thousands of articles and high-definition photos. It's designed for aviation enthusiasts and curious children alike, offering engaging content and a badge collection system for motivation.
- Thousands of articles and pictures
- High-definition photos
- Intuitive user interface
- Offline availability
- Badge collection system
- A-Z topic coverage
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Recognize a jet, follow its history, and discover what makes it different. Explore 347 articles on passenger aircraft, turboprops, cargo aircraft and aviation history. Start with the Boeing 747 or Airbus A380, then follow related topics at your own pace. Discover the Aero Spacelines Super Guppy, Britten-Norman BN-2 Islander and Trislander. Super VC10 coverage appears within the Vickers VC10 article. START WITH FIVE FREE ARTICLES New readers can choose any five different articles. Your chosen articles stay unlocked, and revisiting them never uses another choice. Existing readers keep previously granted access. MAKE DISCOVERIES YOUR OWN • Search article titles and full text • Follow links between related topics • Save articles and return to your reading position • Continue recent reading and track your progress • Explore connections through the timeline and graph • Find article sources and image credits inside the app CHOOSE YOUR ACCESS Own the full encyclopedia with a one-time purchase for complete offline reading. Or choose monthly or annual Premium for the full encyclopedia plus AI chat grounded in this subject's articles. Eligible new Premium subscribers receive a three-day introductory trial. Subscriptions renew automatically unless canceled through your App Store account. Current local prices and terms appear before purchase. Restore Purchases recovers eligible previous purchases. Earlier full-version ownership includes encyclopedia and offline access; Premium AI requires a subscription. Internet access is required for AI chat and purchases. AI answers may contain errors; consult the linked sources. Article text is adapted from Wikipedia under CC BY-SA 4.0. Images come from Wikimedia sources under evidenced open licences or public-domain declarations. Source links, licenses, creator credits and changes are available in the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ADP
This comprehensive aviation dictionary provides quick reference for pilots, technicians, and engineers. It defines over 16,500 terms, abbreviations, and phrases with illustrations, and works offline.
- Offline access
- 16,500+ aviation terms
- 700+ illustrations
- Word/Abbreviation searching
- Bookmarking
- Text-to-speech pronunciation
- Word of the Day
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Aviation Dictionary is an educational and reference application created to collect and store all the most commonly used words and abbreviations in the aviation industry. It is designed to give pilots (both students and graduates), technicians, ATC , engineers and other related aviation specialist a quick reference to learn and remember all the vocabulary used in their day-to-day aviation life. This Aviation Dictionary app is based on the popular book Dictionary of Aeronautical Terms by Dale Crane and helps users understand all the words, abbreviations, acronyms, and phrases in the different disciplines of aviation. this app explains as well as defines more than 16,500 terms and includes nearly 500 illustrations to further define and aid visual recognition. It contains more than 16,500 word meanings from every branch of aviation engineering Aviation Dictionary is an educational and reference application created to collect and store all the most commonly used words and abbreviations in the aviation industry. It is designed to give pilots (both students and graduates), technicians, ATC , engineers and other related aviation specialist a quick reference to learn and remember all the vocabulary used in their day-to-day aviation life. Aviation Dictionary Offline Features : This complete, handy dictionary app is the definitive reference source for the entire aviation industry — including administrators, pilots, aviation maintenance technicians, drone operators, colleges and universities, air traffic controllers, manufacturers, engineers, government agencies, airlines, and corporate flight departments, as well as newcomers to the industry, and those who speak English as a second language, ********* App features:- • No internet connection required; app fully installs to your device. • More than 700 illustrations to aid visual recognition. • over 16,500 terms, abbreviations and definitions More than 16,500 aviation terms, acronyms, abbreviations, and phrases are defined. • Bookmarking • Word/Abbreviation searching • Font adjustment • Speak Press the speak button to hear how the words sound (uses phones text-to-speech engine) • Share - You can share your favorite words & abbreviations with your friends • Find meanings of Abbreviations -Get more information on words via web search • Brought to you by a trusted resource in aviation training and publishing, Aviation Supplies & Academics (ASA). • Powerful search function features fast lookup using the first few letters of a word. • Index lets you browse the complete database of terms. • Word of the Day helps you learn a new aviation term daily; shake-it feature issues a new word on demand. • Works offline • Includes all the terms and definitions from the popular book, Dictionary of Aeronautical Terms by Dale Crane. • Search ********* Dictionary ********** • Aviation Dictionary • Abbreviations • ATPL Dictionary • Glossary of civil aviation • Aeronautical Glossary • Glossary / list of Aviation Abbreviations • Aerospace Engineering • Aviation Checklist • Airport IATA Code • AirPort Codes • ICAO Airport code • ICAO Aircraft type designators • ICAO Altitude code ********** EXTRA FEATURES: -Phonetic Alphabet - A list of all the NATO phonic characters and their respective Morse codes -Q-Codes - All the aeronautical service Q-codes and what they mean -Standard Phraseology - The standard words used in radio communications and what they mean -Aircraft Registration Prefixes - The registration prefixes painted on all aircraft for their respective country -Airlines - Information on over 100 international airlines -Airports - Information on over 2000 airports around the world -International Dialing Codes - List of countries with their cellphone country codes -Measures/Conversion Factors - The most commonly used measures in aviation with conversions to other units -V Speeds - Compilation of all V Speeds and their descriptions
Screenshots
Verdict
The clearest difference is price: Airliners Encyclopedia at Free against ADP's $10.99. Airliners Encyclopedia also leads on review sentiment (44% vs 0%) and rating (4.1 vs 1.0). ADP's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). On 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
Airliners Encyclopedia is free to download; ADP costs $10.99 up front. Airliners Encyclopedia sells 3 in-app purchases, starting at $2.99 per month. ADP asks for nothing beyond the download.
Airliners Encyclopedia holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Airliners Encyclopedia has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 44% of Airliners Encyclopedia's written reviews are positive against 0% of ADP's.
Airliners Encyclopedia ships an update weekly, ADP every 39 months. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.
| Parameter | Airliners Encyclopedia | ADP |
|---|---|---|
| Price | Free — better | $10.99 |
| Rating | 4.1 (21 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 44.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 21 — better | 1 |
| Update frequency | Weekly — better | Every 39 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 129 MB | 70 MB |
| Age rating | 12+ | 4+ |
| Developer | Good Spider, LLC | Raj Kumar |
Customer experience
Airliners Encyclopedia
ADP
In-app purchases
Airliners Encyclopedia
- Monthly Premium3 Days trial$2.991 Month
- Annual Premium3 Days trial$19.991 Year
- Full Version$9.99
ADP
No in-app purchases
Questions
Is Airliners Encyclopedia free?
Is ADP free?
Which has better reviews, Airliners Encyclopedia or ADP?
Do Airliners Encyclopedia or ADP have ads?
Which is updated more often, Airliners Encyclopedia or ADP?
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