Comparison

RealEngineSim vs Engine Simulator 3D

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

Head to head
About

RealEngineSim

Experience the realistic engine sounds of cars and motorcycles with this simulation game. Control manual transmission vehicles with precise speed, acceleration, and braking. Features two driving modes for varied gameplay.

Highlights
  • Realistic engine sound synthesis
  • Manual transmission control
  • Speed control and tracing modes
  • Life-like tire slippage
  • Passenger cars, sports cars, and motorcycles
Read full description

RealEngineSim is a simulation game that you can enjoy the real engine sound of cars and motorcycles made by the innovative engine sound synthesis technology. RealEngineSim uses technology completed through years of research by engine sound professionals in Hamamatsu, a region known as a home to the world’s automobile and motorcycle manufacturers. Using this technology, we have created the world’s only iPhone app able to regenerate real engine sounds. ○This app is a simulation game in which you can enjoy the speed control and the innovative engine sound of manual mission vehicles. ○The use of a speaker gives you even more realistic and muscular sound. However, we would ask you to enjoy this app with an earphone or a headset when using it in public places. (* Please be extra careful of the volume in order not to either hurt your hearing or trouble people around you.) ◆ Available vehicles ◆ Four types: passenger cars, sports cars, sports motorcycles, and racing cars. You can also enjoy controlling the acceleration, braking, clutch, and shifting of manual transmission vehicles (Auto-Clutch available). *There are eight additional engine sounds available for in-app purchase. ◆ Pursuing realistic engine sound ◆ Precise vehicle models and innovative engine sound synthesizers were used to achieve real engine behavior and powerful engine sound that cannot be experienced through other racing games. Features life-like tire slippage caused by sudden acceleration and braking. ◆ The Driving Mode ◆ There are two modes: free driving and speed tracing Speed tracing is a game in which the object is to drive at a specific target speed. Expert mode features the racing speed data from racing cards driving on famous courses from around the world, giving you the chance to experience the excitement of racing on real courses. * The game modes, such as the chicken race, are available for in-app purchase. * The new technology of engine sound synthesis used in this app was developed by an engineer, who started his own business after a long time research on the sound at Yamaha Motor Co.,Ltd. (motorcycle manufacturer). The patent application is now in preparation. ◇For information and inquiries on our engine sound The engine sound synthesis technology used for this app is available for use in a variety of medias such as games, movies, and so on. Please feel free to contact us for more details. Sound Design Lab LLC. Email: maedao@sound-design-lab.com Website: http://www.sound-design-lab.com/ ◎The Profile of The Producer Name: Osamu Maeda (Resides in Iwata city, Shizuoka Pref.) Career: April 1974 to Sept.2007 Worked for Yamaha Motor Co.,Ltd. There he was in charge of the research on the engine sound. Oct. 2007 (to the present) Founded the Sound Design Lab LLC. ◇For inquiries on the middleware The middleware to play the engine sound is available for mobile devices such as iOS. For more information, please contact at the following address. CAI Media Co.,Ltd. Email:info@smocca.co.jp Website: http://www.smocca.co.jp/iphone/Realenginesim.html *This product uses fonts from Fontworks Japan Co., Ltd. The Fontworks Japan company name, Fontworks, and font names are trademarks or registered trademarks of Fontworks Japan Co., Ltd.

About

Engine Simulator 3D

Explore and interact with six detailed 3D engine models, from inline-4 to V12. Experience realistic engine sounds generated in real-time and test different gearboxes, exhaust settings, and tuning options.

Highlights
  • Six detailed 3D engine models
  • Real-time audio generation
  • Multiple gearbox options
  • Customizable exhaust and tuning
  • Interactive engine inspection
  • Multi-language interface
Features
Read full description

Start the engine and move the throttle to hear and see the revs change. Explore inline, V and rotary engines in 3D. • A range of engines Explore Inline-3 Compact, Inline-4 High-rev, Inline-4 Turbo, Inline-5 Turbo, Inline-6 Twin, V6 Even-fire, V8 Low-rev, V10 High-rev, V12 Grand and Rotary Twin-rotor. Drag to rotate the engine, then open the expanded view to inspect moving parts such as pistons, connecting rods, the crankshaft and rotors. • Views and close-up inspection Choose a top, side, front or default view, and use two fingers to move or zoom the view. In the expanded view, you can slow the motion down 12× or see through the fixed parts to watch the parts inside, while the sound and revs stay at real speed. Piston engines also show the combustion glow and exhaust heat. • Four gearboxes Choose a 5-speed manual, 6-speed manual, 8-speed automatic or 7-speed dual-clutch. Use the gear controls and clutch, brake and throttle pedals for the selected gearbox. Follow the engine state on the tachometer and gear display. With a manual gearbox, revs build more heavily in higher gears and you can feel the lever engage each gear. The clutch pedal shows engaged, slipping and open zones, and you can turn on a large shift lever in Settings. • Drive modes and launch control Comfort, Sport, Sport Plus and Custom drive modes change the throttle response, automatic shift points and exhaust valve sound. For Custom, choose throttle response, shifting and exhaust valve separately in Settings and save them. Sport Plus also offers launch control. • Exhaust and sound settings Change the exhaust and tuning in Settings and compare the sound from idle to high revs. Audio is generated in real time from the engine's behavior; it does not play recordings of real vehicles. • Ads and access The default inline-six engine is available without watching an ad. A confirmed rewarded ad applies the selected engine and gives that engine a 24-hour pass, stored on this device. You can keep using the current engine if its pass expires during use. When you reopen the app or return from the background after expiry, the app switches to the default engine and lets you know. If an ad cannot load, you can retry, check connection help, or keep using the current engine. Banner ads may appear at the bottom of the screen. No account or sign-in is required. The app interface is available in 17 languages, including English, Korean, Japanese and Chinese. The engines are original designs and do not reproduce any specific manufacturer or vehicle.

Screenshots

RealEngineSim4 screens
Engine Simulator 3D4 screens

Verdict

The call

The clearest difference is rating: Engine Simulator 3D at 5.0 against RealEngineSim's 3.8. Engine Simulator 3D also leads on in-app purchases (none vs 3) and update cadence (daily vs weekly). RealEngineSim's advantage is ads (none vs shown) and device support (3 vs 1). On price 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

Both are free to download. RealEngineSim sells 3 one-off in-app purchases. Engine Simulator 3D asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Engine Simulator 3D holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 83 and 21 respectively. Written reviews point the same way: 72% of RealEngineSim's written reviews are positive against 82% of Engine Simulator 3D's.

UpkeepUpdate frequency

RealEngineSim ships an update weekly, Engine Simulator 3D daily. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

Scorecard9 real differences · 1 level
RealEngineSim versus Engine Simulator 3D: the parameters behind the verdict, then further details
ParameterRealEngineSimEngine Simulator 3D
PriceFreeFree
Rating3.8 (83 ratings)5.0 (21 ratings) — better
Positive reviews72.2% of reviews81.8% of reviews — better
Number of ratings83 — better21
Update frequencyWeeklyDaily — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better17.0
Further details — not scored
Size52 MB12 MB
Age rating4+4+
DeveloperSOUND DESIGN LAB LLCGroundcode

Customer experience

RealEngineSim

All ratings73 ratings
Positive69.9%
Neutral5.5%
Negative24.7%
Written reviews72 reviews
Positive72.2%
Neutral11.1%
Negative16.7%

Engine Simulator 3D

All ratings21 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews22 reviews
Positive81.8%
Neutral4.5%
Negative13.6%

In-app purchases

3 purchases

RealEngineSim

One-time3
  • Game 2 Pack$0.99
  • Vehicle 4 Pack$0.99
  • Vehicle 4 Pack2$0.99
None

Engine Simulator 3D

No in-app purchases

Questions

Is RealEngineSim free?
RealEngineSim is free to download, with in-app purchases available.
Is Engine Simulator 3D free?
Engine Simulator 3D is free to download, with no in-app purchases.
Which has better reviews, RealEngineSim or Engine Simulator 3D?
Engine Simulator 3D is rated higher. RealEngineSim averages 3.8 out of 5 from 83 ratings, while Engine Simulator 3D averages 5.0 from 21 ratings.
Do RealEngineSim or Engine Simulator 3D have ads?
Engine Simulator 3D shows ads; RealEngineSim does not.
Which is updated more often, RealEngineSim or Engine Simulator 3D?
RealEngineSim ships an update weekly, and Engine Simulator 3D daily. Most recently, RealEngineSim was updated on October 21, 2026 and Engine Simulator 3D on October 19, 2026.

Other comparisons