Comparison

Gas Turbines vs Training Notes

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

Head to head
About

Gas Turbines

Explore the design, construction, and function of a modern triple spool gas turbine engine through interactive 3D models. This educational tool provides a foundational understanding for aspiring aviation professionals and a refresher for experienced ones.

Highlights
  • Interactive 3D gas turbine engine model
  • Component visualization and animation
  • Detailed summaries of design and construction
  • Identification of threats and errors
  • Unique navigation wheels for engine assembly
  • Foundational ATPL theory learning
Features
Read full description

Padpilot EASA ATPL Gas Turbines Learning Core Padpilot Learning Cores are the new way to learn ATPL theory without breaking a sweat! This Gas Turbines learning core is the first of what will eventually be a whole series of cores covering critical parts of each ATPL subject area. This app helps you to understand the design, construction and function of a modern triple spool gas turbine engine. It doesn’t (yet) teach you everything you need to know for the EASA exam (you still need to refer to our ATPL book) but it does build a solid foundation of the basics. It’s also a fabulous learning tool for current airline pilots or engineers who wish to refresh their gas turbine knowledge. Later versions of this core will include more elements illustrating, for example, detailed gas flow and gas turbine theory. Self-test EASA style questions are also coming soon. At the heart of the learning core is a 3D model gas turbine engine based on the Rolls Royce Trent 1000. You can move it around any axis, show and hide individual components and animate some of the main elements such as the individual spools, the thrust reversers and the variable inlet guide vanes. Tapping on individual components reveals a pop-up dialogue box which summarises the design and construction of the item. Where appropriate dialogue boxes also describe the most commonly associated threats or errors. Unique Padpilot navigation wheels let you quickly strip and re-build the engine, or identify by colour each of the three spools. If you need to take a break from text-heavy learning, then Padpilot learning cores are the way to go.

About

Training Notes

Features
Read full description

A revolutionary application for your ground school study - use your own mobile device, get instant access to selected course and complete your ground training with the best. This application, created by the British Aviation Academy, is a top-class source of knowledge. We offer a range of EASA / UK CAA Approved courses and also non approved courses and study notes. The software is designed to make learning easy and enjoyable, but also allow you to dip in and out so that you can maximise utilisation of free time. Courses and knowledge delivered via in-app content: - ATPL(A) - Aerobatics - IR(A) / CBM IR(A) - IR(R) - Multi Engine Aircraft - PPL(A) - PPL(A) CBM IR Each course is divided into multiple sub-chapters containing learning objective driven contents. We have worked hard to extract the key elements and have written them in a user-friendly format. Every course and sub-chapter contains progress tests, ensuring your eventual exam success. About British Aviation Academy The British Aviation Academy can train you from beginning to successful conclusion throughout your pilot career. 55% of our students are international, coming from all over the world to train as national and international aerobatic competitors and commercial courses. We live, eat and breathe flying. We are a CAA and EASA audited ATO, so that our students will always be able to gain EASA licenses and qualifications. Visit us at Fowlmere Airfield or at www.britishaviationacademy.com

Screenshots

Gas Turbines4 screens
Training Notes4 screens

Verdict

The call

The clearest difference is price: Training Notes at Free against Gas Turbines's $9.99. Training Notes also leads on update cadence (daily vs every 43 months) and iOS requirement (9.0 vs 17.4). On 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

Training Notes is free to download; Gas Turbines costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Gas Turbines ships an update every 43 months, Training Notes daily. Both last shipped on October 5, 2026.

Scorecard3 real differences · 7 level
Gas Turbines versus Training Notes: the parameters behind the verdict, then further details
ParameterGas TurbinesTraining Notes
Price$9.99Free — better
Rating3.5 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 43 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.49.0 — better
Further details — not scored
Size225 MB15 MB
Age rating4+4+
DeveloperPadpilot LimitedBritish Aviation Academy

In-app purchases

None

Gas Turbines

No in-app purchases

None

Training Notes

No in-app purchases

Questions

Is Gas Turbines free?
Gas Turbines costs $9.99, with no in-app purchases.
Is Training Notes free?
Training Notes is free to download, with no in-app purchases.
Do Gas Turbines or Training Notes have ads?
Neither Gas Turbines nor Training Notes shows ads.
Which is updated more often, Gas Turbines or Training Notes?
Gas Turbines ships an update every 43 months, and Training Notes daily. Most recently, Gas Turbines was updated on October 5, 2026 and Training Notes on October 5, 2026.

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