Trans4motor vs Measuro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trans4motor
Explore the mechanics of 4-stroke engines with this interactive simulator. Visualize the transformation of various engine types and understand their internal workings through detailed CG animation. Enhance your knowledge with adjustable settings and realistic engine sound options.
- Multi-cylinder engine transformation
- Realistic engine sound (in-app purchase)
- Accelerator control simulation
- Expandable engine library
- Custom engine registration and editing
- Interactive educational videos
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Trans4motor is a simulator where you can control the movements of single cylinder to 12 cylinder 4 stroke engines on the 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. #3 Top Paid iPad App in Japan #5 Top Paid iPhone App in Japan https://www.youtube.com/user/Trans4motor https://www.facebook.com/Trans4motor Features 1) Seamlessly transforms into different type of engines Select from inline to V-type, or other multi-cylinder engines, and watch the running engines transform over continuous CG animation. Enjoy watching the inline engine camshaft separate into two parts as it transforms into the V-type engine and how phase angle modulation between cylinders makes the crankshaft rotate, separate, and combine into many engine formations. 2) Add Engine Sound (In-App Purchase) Developed in technical collaboration with "CAI MEDIA CO.,LTD.", the developer of the iPhone app featuring innovative synthetic engine sound, "RealEngineSim" this new feature will add a variety of realistic engine sounds ranging from different number of cylinders to explosions with unequal intervals and cylinder rest. Engine Sound Add-On is available via In-App Purchase. 3) Accelerator Control Accelerator control is available during engine sound replay. Tilt iPhone to different degrees as if pressing the accelerator pedal. Tilt forward horizontally (as if pressing the accelerator) to activate the accelerator, and erect vertically (as if releasing the accelerator) to deactivate it. Furthermore, you can race the engine by tapping the center of rev counter. 4) Addition/expansion of engines There are currently 22 types of engines registered. Through automatic network updates, continuous expansion is planned. In addition, there are functions installed that allow users to newly register and edit engines. Able to adjust setting for engine bore stroke, firing order, and ignition timing. Easily replicate on the iPad, engines with unequal combustion intervals for two-wheelers, Inline-four crossplane or V5. 5) Interactive Movie ·Four-stroke engines ·Firing Order ·V Angle Recorded 3 controllable presentation videos. The company and product names used within the application are generally registered trademarks or trademarks of the respective companies. The objective of this application is to upload engine specifications disclosed to the public and to learn about general information regarding engines. It does not accurately replicate actual machine measurements and designs. The CG animated engine rotates at one tenth of the actual speed to enable users to learn the structure and to enjoy the visual.
Measuro
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Measuro is the all-in-one unit converter built for speed, simplicity and precision. Whether you're a student solving physics problems, an engineer working with measurements, a chef converting a recipe or a traveller checking distances, Measuro brings every conversion you need into one clean app. CONVERT EVERYTHING • Length – meters, feet, inches, miles, nautical miles • Weight & Mass – kilograms, pounds, ounces, stones • Temperature – Celsius, Fahrenheit, Kelvin, Rankine • Area – square meters, acres, hectares • Volume – liters, gallons, cups, fluid ounces • Speed – km/h, mph, knots, Mach • Digital Storage – bytes, KB, MB, GB, TB • Fuel Efficiency – L/100km, mpg, km/L • Plus Pressure, Energy, Power and more INSTANT, REAL-TIME RESULTS Type once and every unit updates instantly. No convert button, no waiting. BUILT-IN KEYPAD A custom numeric keypad designed for conversion. Fast, clean and always in reach. MAKE IT YOURS • Star your favourite units to pin them to the top • Reorder units by dragging in Edit mode • Your preferences are saved automatically CLEAN & NATIVE Built entirely with SwiftUI following Apple's guidelines, with full Dark Mode support and smooth animations. REMOVE ADS Enjoy an ad-free experience with a single one-time purchase. No subscription, no hidden fees. Pay once, use forever. Available in 14 languages. Download Measuro and convert anything in seconds.
Screenshots
Verdict
The clearest difference is price: Measuro at Free against Trans4motor's $2.99. Measuro also leads on update cadence (every 9 days vs every 2 months). Trans4motor's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.6). On 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
Measuro is free to download; Trans4motor costs $2.99 up front. Trans4motor sells 1 one-off in-app purchase and Measuro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Trans4motor ships an update every 2 months, Measuro every 9 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Trans4motor | Measuro |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.7 (70 ratings) — better | — |
| Positive reviews | 56.1% of reviews | — |
| Number of ratings | 70 — better | — |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 24 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Kitt Peak, Inc. | Alberto Dimanuel |
In-app purchases
Trans4motor
- Add Engine Sound$1.99
Measuro
- Remove Ads$1.99
Questions
Is Trans4motor free?
Is Measuro free?
Do Trans4motor or Measuro have ads?
Which is updated more often, Trans4motor or Measuro?
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