# Aviation Theory > Pilot training manuals and reference media for all license levels. (iPhone/iPad app by Aviation Theory Centre.) - Source: https://appshunter.io/ios/app/aviation-theory/id1265030371 (this page in markdown: same URL + `.md`) - Developer: [Aviation Theory Centre](https://appshunter.io/developer/830497925) - Category: Education - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 12.0 · 19 MB - Languages: American English, Arabic, German (Germany), Slovenian - Released: 2017-08-23 - Data updated: 2026-06-03 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/aviation-theory/id1265030371/reviews.md ## What is Aviation Theory? Aviation Theory Centre (ATC) is a Australian family owned business, that was developed to provide the aviation industry the highest quality training manuals and reference media for pilots – for all license levels and ratings. The company has been in existence for more than twenty-five years, originating in Melbourne and relocating to Brisbane in 2009. Aviation Theory Centre researches, authors, illustrates, and edits all of its own material. Aviation Theory Centre has established a network of consultants who advise, critique and edit the drafts. OUR MANUALS ARE CASA COMPLIANT The Australian series of manuals complies with the CASA syllabus which in turn, is aligned with ICAO requirements. Aviation Theory Centre has also prepared books for publication in the US and UK through partner companies, ASA and Pooleys, respectively. ## Key features - Pilot training manuals - Reference media - All license levels - CASA compliant - ICAO aligned - Australian developed ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Seven Volume PPL/CPL Kit | $149.99 | one-time | | IFG (2018) | $21.99 | one-time | | Visual Flight Guide 2019 | $22.99 | one-time | | Avionics & Flight Mngmt Sys EE | $39.00 | one-time | | Aviation Meteorology EE | $49.00 | one-time | | Multi-Engine Piston EE | $39.00 | one-time | | Aircraft Propulsion EE | $49.00 | one-time | | Night Flight EE | $39.00 | one-time | | Instrument Rating Set EE | $149.99 | one-time | | Human Being Pilot Set EE | $79.99 | one-time | | Private Pilots’ License | $99.99 | one-time | ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/aviation-theory/id1265030371/reviews.md ### 1/5 — It’s bad *2025-09-30, version 1.41* The most optimistic interpretation of this app is it’s deliberately bad so that you go and buy the physical books. Offline use doesn’t work, it lags when you flip between pages, it’s slow and clunky and difficult to use especially if you’re trying to go back to something quickly. I have no issues with the content but this app is awful. ### 1/5 — Terrible app *2022-08-30, version 1.41* App not well optimised for mobile and I can’t access the content after purchase. App needs to be redesigned. ### 2/5 — Average app with [mostly] great content (partly out of date) *2022-01-19, version 1.41* Update to review below: Offline access and download speed problems fixed after they directed me to delete and reinstall the app. But marking-up in the app (highlighting, scribbling notes and answers on review questions) still causes the app to crash incessantly. Lots of IREX content is out of date, particularly since Part 91 came in, but even before that it still mostly reads pre-GNSS days re ground-based navaids vs RNP/GNSS/RNAV. ….. Original review: Content is excellent as ATC have been doing for decades, my first books over 20 years ago were invaluable to learn and understand all theory. This app needs to be thrown in the bin though. Downloading books for offline use took many attempts, seems you maybe have to leave the app running on the screen for it to download, and the speed is stupidly slow for some reason, I’m guessing because ATC’s servers are archaic? Then using them offline… certainly doesn’t work as smoothly as something should if it’s on my iPad. Sometimes sits there with a blurry screen like it’s trying to download. And it regularly crashes particularly when marking up with apple pen. Try harder ATC, this app really is a let down on your outstanding reputation. ### 2/5 — Nothing wrong with content but app is hopeless *2021-05-18, version 1.41* First off, no issue with the content. However the app won’t load textbook (checked internet connection) and I can’t download the textbook for offline use. Hopefully can get the bugs sorted quickly so I can access the textbooks to keep studying! ### 5/5 — Works great *2020-08-26, version 1.40* Edit: I resolved all issues and the support staff were awesome helping me find a solution. I have left the original comments here for context but I’d have no problem recommending this app and their content (which was never in question; it’s awesome) Original comment It took many attempts to get the sample book to download and once it did, I was getting a JS error and the book would not open. I’ve been recommended the books by several people but it seems they don’t work digitally. Unfortunately I’ve tried many other options for aviation and many want to try and keep it in house, which brings these problems. Or good enough in 2020 where most have a tablet or phone. There are many aviation books on Apple Books and Kindle but unfortunately they’re US based so many things aren’t relevant in Australia. Until an Australia aviation company finally lets us use these successful, efficient platforms, US versions will have to do. If they can do it successfully there, it can be done here also, but most seem intent on reinventing the wheel and grabbing your personal details, with poor results. I have written to the company and they were courteous, responsive and friendly although believed they avoided platforms like Kindle as your can’t highlight texts or annotate text. They also mentioned not being able to update books if they use Apple Books and Kindle. If I get any progress I will update the review but at this point I’ll probably just give up and stick to the simple options of buying an eBook through the normal channels. Quick and simple. ### 4/5 — The function of freehand bookmarks is not working on my iphone7plus!! *2020-03-10, version 1.30* Overall the app is pretty good, I bought it a week ago for me to self learning the theory of aviation ### 2/5 — Poor app *2019-10-12, version 1.30* The e book you got is just scanned pictures, you can’t search keywords plus the quality is bad ### 3/5 — App was running fine but now lags *2018-09-03, version 1.20* App was running fine but now takes a long time to load pages and downloads the textbooks very slowly. I’ve checked my internet and have confirmed I’ve got a good connection. Otherwise a great idea to get the texts easily accessible. ### 2/5 — No offline viewing *2018-05-28, version 1.13* This is a review of the app, not the theory content of the titles. The title I’ve purchased and downloaded has a “offline” tag over the corner of the thumbnail, but when opened each page loads as if it’s downloading while being viewed. To confirm this I disabled the internet connection and found I couldn’t view the book at all. This wouldn’t be a problem except that there are plenty of places I take my iPad for work where I’d like to study, but can’t use the ATC textbook I’ve paid for because there’s no internet available and the supposedly downloaded text doesn’t open. ## Frequently asked questions about Aviation Theory ### What is Aviation Theory? Aviation Theory provides high-quality training manuals and reference media for pilots. It is developed by Aviation Theory Centre, an Australian family business with over 25 years of experience in aviation education. ### Is Aviation Theory content compliant with aviation regulations? Yes, the Australian series of manuals complies with the CASA syllabus, which is aligned with ICAO requirements. This ensures the content meets international aviation standards. ### What license levels does Aviation Theory cover? Aviation Theory offers training manuals and reference media for pilots of all license levels and ratings. This makes it a comprehensive resource for a wide range of aviators. ### What devices does Aviation Theory support? Aviation Theory is available on iPhone, iPad, and iPod. This allows pilots to access training materials on their preferred Apple devices. ### When was Aviation Theory last updated? The latest version of Aviation Theory is 1.41, which was last updated on September 12, 2020. The app was initially released on August 23, 2017. ### What is the age rating for Aviation Theory? Aviation Theory has an age rating of 4+. This indicates it is suitable for a broad audience, though its primary content is for aspiring and current pilots. ### Does Aviation Theory have ads? Aviation Theory does not contain advertisements. This ensures an uninterrupted learning experience for users. ### How does Aviation Theory compare to other pilot training resources? Aviation Theory is developed by a long-standing Australian business with a focus on CASA compliance and ICAO alignment. Its content is researched, authored, and illustrated in-house, ensuring quality and accuracy. ## Version history (last 5 releases) ### 1.41 — 2020-09-12 general bugfix ### 1.40 — 2020-06-18 General bugfix ### 1.30 — 2019-07-13 In this version: - faster In-App purchases price retrieval ### 1.22 — 2018-10-17 Edition Digital is periodically updating its app engine for maximum user satisfaction. ### 1.20 — 2018-08-22 General bugfix --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*