Comparison

SmartSub 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

SmartSub

Features
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SmartSub provides easy to use remote control of virtually all Digital Signal Processing (DSP) features offered by subwoofer amplifiers from Formosa Audiomate Ltd. Smartsub connects easily and wirelessly to these state-of-the-art amps via Bluetooth. Imagine making any adjustment to your own audio subwoofer from your home’s favorite “sweet spot”, or really anyplace in your home theater or music room!

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
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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 Start the default inline-six engine without watching an ad. Other engines can be previewed while stopped; a rewarded ad is offered when you first try to start one. A confirmed reward grants 24-hour access to that engine on this device. Press Start again after the ad closes. Passes are saved separately for each engine. Expiry does not interrupt an ongoing session, but returning to or reopening the app restores the default engine if the pass has expired. The default engine remains available if an ad cannot open or a reward is not confirmed. 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

SmartSub4 screens
Engine Simulator 3D4 screens

Verdict

The call

The clearest difference is ads: SmartSub at none against Engine Simulator 3D's shown. SmartSub also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.0). Engine Simulator 3D's advantage is update cadence (daily vs monthly). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SmartSub ships an update monthly, Engine Simulator 3D daily. The most recent releases landed on October 19, 2026 and October 23, 2026 respectively.

Scorecard4 real differences · 6 level
SmartSub versus Engine Simulator 3D: the parameters behind the verdict, then further details
ParameterSmartSubEngine Simulator 3D
PriceFreeFree
Rating—4.8 (33 ratings) — better
Positive reviews—83.9% of reviews
Number of ratings—33 — better
Update frequencyMonthlyDaily — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better17.0
Further details — not scored
Size36 MB12 MB
Age rating4+4+
DeveloperFormosa AudiomateGroundcode

In-app purchases

None

SmartSub

No in-app purchases

None

Engine Simulator 3D

No in-app purchases

Questions

Is SmartSub free?
SmartSub is free to download, with no in-app purchases.
Is Engine Simulator 3D free?
Engine Simulator 3D is free to download, with no in-app purchases.
Do SmartSub or Engine Simulator 3D have ads?
Engine Simulator 3D shows ads; SmartSub does not.
Which is updated more often, SmartSub or Engine Simulator 3D?
SmartSub ships an update monthly, and Engine Simulator 3D daily. Most recently, SmartSub was updated on October 19, 2026 and Engine Simulator 3D on October 23, 2026.

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