SmartSub vs Engine Simulator 3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartSub
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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!
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.
- Six detailed 3D engine models
- Real-time audio generation
- Multiple gearbox options
- Customizable exhaust and tuning
- Interactive engine inspection
- Multi-language interface
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SmartSub ships an update monthly, Engine Simulator 3D daily. The most recent releases landed on October 19, 2026 and October 23, 2026 respectively.
| Parameter | SmartSub | Engine Simulator 3D |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (33 ratings) — better |
| Positive reviews | — | 83.9% of reviews |
| Number of ratings | — | 33 — better |
| Update frequency | Monthly | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 36 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Formosa Audiomate | Groundcode |
In-app purchases
SmartSub
No in-app purchases
Engine Simulator 3D
No in-app purchases









