Comparison

Trans4motor S vs 技術士 一次試験 機械部門 対策

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

Head to head
About

Trans4motor S

Explore the inner workings of various four-stroke aircraft engines through detailed CG animations. Experience realistic engine sounds, throttle control, and interactive modes like cutaway views and engine start-up simulations. Learn about engine mechanics and history.

Highlights
  • Transform between engine types
  • Realistic engine sound and throttle control
  • Cutaway view of engine internals
  • Virtual engine start-up procedure
  • Interactive movie presentations
  • Machine gun firing simulation
Features
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"Trans4motor S" is the reciprocating aircraft engine simulator. You can operate a wide range of four-stroke engines from the Wright brothers' inline 4 cylinders to the radial, inverted V, W, and H-type on your iPad/iPhone. Recommended to anyone interested in car and motorcycle engines. This is for those who have a relentless love for engines and want to enhance their knowledge. Relive the development of the glorious reciprocating aircraft engine. https://www.youtube.com/user/Trans4motor https://www.facebook.com/Trans4motor Features 1) Seamlessly transforms into different types of engines Select from Radial to V-type, or V-type to inverted V-type, etc., and watch the running engines transform over continuous CG animation. You can enjoy watching pistons, connecting rods, camshafts, valves, and many other parts rotate, separate, and combine to make a variety of engine forms. 2) Engine sound and throttle control. Developed in technical collaboration with Sound Design Lab, the developer of the innovative engine sound application "RealEngineSim", based on the SDL method of engine sound synthesis, this new feature brings a new level of engine sound synthesis for aircraft. You can experience realistic and powerful engine sounds include, of course, the different numbers of cylinders, the difference between air-cooled and liquid-cooled engines, and the interference sound caused by the rotation of propellers. In addition, a sophisticated aircraft engine physics model is available in this new version. It calculates the engine speed based on the engine torque and rotational resistance due to the air resistance depending on the diameter and number of propellers in real time. Please try the realistic throttle operation. 3) Cutaway mode You can view the inside of the air-cooling fins and crankcase of the running engine by cutting them horizontally and vertically in real-time. 4) Engine start-up mode Turn the starter handle manually, increase the speed of the inertia starter and contact the clutch! In this mode, you can virtually experience the engine start-up procedure. 5) Machine gun mode In this mode, you can test-fire the "Type 97 aircraft machine gun" of the "Sakae" engine installed in the Zero fighter, the "MG 151/20" of the "DB 601" engine installed in the "Messerschmitt Bf 109". You can also learn how the propeller synchronize system works in super slow motion. 6) Interactive Movie ·Four-stroke engines ·Cam and Gear ·Gun ·Sleeve Valve Recorded 4 controllable presentation videos. Additional functions planned in the future. ·R-4360 Wasp Major will be available soon. ·Adding function to import 360° background images (HDRI files). The CG animated engine rotates at one tenth of the actual speed to enable users to learn the structure and to enjoy the visual. This application is based on a representation of the engine specifications available to the public for learning purposes, and is not a precise rendition of the dimensions and design of the actual machine. The company and product names used within the application are generally registered trademarks or trademarks of the respective companies.

About

技術士 一次試験 機械部門 対策

Features
Read full description

*** 技術士一次試験機械部門の学習アプリ *** 技術士一次試験機械部門の学習用アプリです。ユーザー登録不要で利用できます。 問題は随時追加予定です。 1問解くごとに結果と解説がわかる方式を採用しています。 問題に不備がある場合は、解説ページに右上の報告するボタンよりご連絡いただけますと迅速に修正対応することができます。 *** 機能 *** ・出題順番をランダムにすることができます ・選択肢の順番をランダムにすることができます ・ミスした問題のみを出題することができます ・ブックマークした問題を出題できます

Screenshots

Trans4motor S4 screens
技術士 一次試験 機械部門 対策4 screens

Verdict

The call

Trans4motor S and 技術士 一次試験 機械部門 対策 are too close to call on the numbers: across 5 compared parameters — update cadence, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

UpkeepUpdate frequency

Trans4motor S ships an update weekly, 技術士 一次試験 機械部門 対策 every 4 days. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.

ScorecardNo meaningful differences
Trans4motor S versus 技術士 一次試験 機械部門 対策: the parameters behind the verdict, then further details
ParameterTrans4motor S技術士 一次試験 機械部門 対策
Price$5.99 — better—
Rating4.6 (19 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings19 — better—
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.113.4 — better
Further details — not scored
Size127 MB27 MB
Age rating4+4+
DeveloperKitt Peak, Inc.Daisuke Matsubara

In-app purchases

None

Trans4motor S

No in-app purchases

None

技術士 一次試験 機械部門 対策

No in-app purchases

Questions

Is Trans4motor S free?
Trans4motor S costs $5.99, with no in-app purchases.
Is 技術士 一次試験 機械部門 対策 free?
Pricing for 技術士 一次試験 機械部門 対策 is not currently listed on the App Store.
Do Trans4motor S or 技術士 一次試験 機械部門 対策 have ads?
Neither Trans4motor S nor 技術士 一次試験 機械部門 対策 shows ads.
Which is updated more often, Trans4motor S or 技術士 一次試験 機械部門 対策?
Trans4motor S ships an update weekly, and 技術士 一次試験 機械部門 対策 every 4 days. Most recently, Trans4motor S was updated on October 20, 2026 and 技術士 一次試験 機械部門 対策 on October 3, 2026.

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