JD Farag vs Intro Airplane Design
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JD Farag
Access weekly Bible sermons and prophecy updates from Pastor JD Farag. This app offers an extensive library of video, audio, and notes from his teachings, along with resources to share the gospel.
- Weekly Bible sermons
- Weekly Bible prophecy updates
- Extensive video/audio/notes library
- The ABCs of Salvation resource
- Pastor JD's teachings
Read full descriptionHide full description
Welcome to the official app of Pastor JD Farag, Senior Pastor of Calvary Chapel Kaneohe, in Kaneohe, Hawaii. Pastor JD teaches weekly Bible Sermons and provides weekly Bible Prophecy Updates. We pray that you will be abundantly blessed through Pastor JD's teachings and our app resources! App Resources: - Extensive video/audio/notes library of Pastor JD's Prophecy Updates and Bible Sermons - The ABCs of Salvation - a simple way to share the gospel of Jesus! Mobile app version: 6.21.3
Intro Airplane Design
Explore aeronautics through interactive simulations and design tools. Learn STEM principles by designing, building, and flying your own gliders and powered aircraft. This app offers comprehensive curriculum content for classroom use or self-study.
- Interactive STEM learning
- Airplane design tools
- Aeronautics simulations
- Offline lab plans
- Classroom curriculum
- Wind tunnel simulation
Read full descriptionHide full description
Introduction to Airplane Design makes it easy to engage in authentic science, technology, engineering, mathematics (STEM) by learning the fundamentals of aeronautics. Making use of interactive simulations and powerful design tools you will be pleased how rapidly one can pickup scientific concepts. Best of all, by actively doing the analysis and design of your own performance gliders on the computer, and then by building and flying your designs off-line to assimilate your studies, you will be impressed with how well your designs perform in actual use, while being amply rewarded with a firm grasp on why your airplane flies so well. As your studies progress one can advance to powered flight by including a rubber band or electric motor and propeller in your designs. With this app, one can experience their knowledge taking flight and soaring to great heights while just having fun! This software app is much more than just game fun though, it can be utilized to teach science with challenge, inquiry, and accountability, yet it is easy to implement and use, and has been well tested in many classroom. The in-depth content of this package can provide 1 to 8 weeks of classroom curriculum that nicely fits learning standards, or which can be used as a comprehensive resource. For grades: 7-12. It is a favorite unit of study at many schools. The app includes lessons, numerous activities, and plans for off-line labs packaged as embedded PDF’s which can be used in classroom settings to keep students actively involved with the software, give students the opportunity to test aerodynamic principles using a wind tunnel simulation and flying test aircraft, and help them to understand how to design their own aircraft that fly well. These lessons can free up more time for you to teach! SCIENCE/PHYSICS PRINCIPLES INCLUDE: * Balance of Forces * Bernoulli’s Principle * Centrifugal Action * Density * Energy * Fluid * Force * Friction * Geometric Change * Line of Action * Newton’s Laws * Moment/Torque * Power Pressure * Supersonic * Velocity IMPORTANT AERODYNAMIC CONCEPTS: * Gravity * Lift * Thrust * Drag * Stability * Control IMPORTANT DESIGN PRINCIPLES: * Airfoil Shape * Wing Shape * Wing Configuration * Tail Requirements * Control Surfaces * Balance and Trim * Dihedral * Propulsion AIRCRAFT DESIGN COMPUTER: Easy input of dimensions 3-D visual of the aircraft design In-depth analysis of performance Detection and explanations of design problems Simulation of airplane glide performance SOFTWARE CONTENT: 28 computer simulations 58 detailed explanations of principles 22 colorful and illustrative diagrams 10 graphs of aerodynamic trends OPTIONAL ACTIVITIES & LABS: 16 classroom activity lessons with objectives 10 hands-on lab plans with material lists Detailed design and build guides Answers, teacher’s notes, and 5 quizzes THE HANDS-ON ADVANTAGE Do you know why and how to design a tail to balance (trim) and stabilize an airplane or glider? Use the software and hands-on activities provided to clearly explain and develop an understanding of such aerodynamic concepts through application and synthesis of many physics principles. The included lab write-ups provide students with the opportunity to actually test out many principles and exercise careful use of scientific methods in testing, measuring, and examining results. These labs can be used to help one understand aerodynamic concepts and experiment with how configuration effects flight performance. They provide additional learning styles and help students assimilate and apply what they are studying. HARNESS THE COMPUTER’S IMPRESSIVE POWER Challenge students to make use of their understanding of principles and concepts to come up with their own aircraft and drone designs. Give them the experience and insight on how the computational power of computers is used to find solutions in the real world, learning is sure to soar!
Screenshots
Verdict
The clearest difference is price: JD Farag at Free against Intro Airplane Design's $14.99. JD Farag also leads on ratings volume (156 vs 1) and update cadence (every 2 months vs every 9 months). Intro Airplane Design's advantage is iOS requirement (12.0.0 vs 15.1). On rating, review sentiment, ads and in-app purchases 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
JD Farag is free to download; Intro Airplane Design costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for JD Farag against 5.0 for Intro Airplane Design. That said, the two scores are not equally well evidenced: JD Farag has 156 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 94% of JD Farag's written reviews are positive against 100% of Intro Airplane Design's.
JD Farag ships an update every 2 months, Intro Airplane Design every 9 months. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.
| Parameter | JD Farag | Intro Airplane Design |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 4.9 (156 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 94.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 156 — better | 1 |
| Update frequency | Every 2 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPad |
| Requires iOS | 15.1 | 12.0.0 — better |
| Further details — not scored | ||
| Size | 53 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | CALVARY CHAPEL KANEOHE INC. | Seeds Software |
Customer experience
JD Farag
Intro Airplane Design
Bugs and requests
JD Farag
Reported bugs
3 issues- App does not load properly, shows loading circle
- Stop button not functioning correctly after iOS update
- App quit working after iOS update 17.03
Requested features
4 requests- Feature to show sermon progress (what's listened to, not listened to, where left off)
- Completion mark on sermons
- Way to organize sermons
- Create favorites or individually named playlists
Intro Airplane Design
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JD Farag
No in-app purchases
Intro Airplane Design
No in-app purchases
Questions
Is JD Farag free?
Is Intro Airplane Design free?
Which has better reviews, JD Farag or Intro Airplane Design?
Do JD Farag or Intro Airplane Design have ads?
Which is updated more often, JD Farag or Intro Airplane Design?
Other comparisons















