Engine Simulator 3D vs RevApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engine Simulator 3D
Explore a variety of 3D engine models, from inline to rotary designs. Inspect moving parts, adjust views, and experience realistic sound and gear shifting. Customize drive modes and exhaust settings for an immersive simulation.
- 3D engine models (inline, V, rotary)
- Detailed inspection of moving parts
- Multiple camera views and zoom
- Realistic sound and rev simulation
- Manual and automatic gearboxes
- Customizable drive modes
- Launch control
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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.
RevApp
Experience the thrill of driving various car engines with realistic sound simulation. Accelerate, shift gears, and enjoy different soundscapes, all from your iPhone. It offers a garage of diverse engines and multiple driving modes.
- Realistic engine sound simulation
- Multiple engine types (V12, V8, V6, etc.)
- Paddle-shift gear changes
- Rev limiter and exhaust crackles
- Haptic feedback on shifts
- Offline play
- Multiple sound environments
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Feel the engine, not just hear it. RevApp: Engine Lab turns your iPhone into an engine you can drive. Hold the throttle and the revs climb, shift up and the sound drops into the next gear, lift off and the exhaust crackles on the overrun. Every engine has its own physics, gearing, limiter and instrument cluster. A GARAGE FULL OF ENGINES Naturally aspirated V12, V10 and flat-six, twin-turbo V8 and V6, a turbocharged inline-six, a turbocharged 16-cylinder and more – each with its own character. DRIVE IT • Hold to accelerate, paddle-shift up and down • Rev limiter, blips on downshifts, pops and crackles • Pedal Mode with a real 0–100 % throttle, Flow Mode for one finger • Outside, cockpit, dyno and tunnel sound • Haptic feedback on every shift • Drive-away and fly-by scene with distance, Doppler effect and surroundings MADE FOR SOUND • Plays alongside your music • Works completely offline • No ads, no account, no tracking FREE TO TRY Two engines are free forever. Add single engines, get the Supercar Garage with hand-picked supercars, every drive mode, every sound version and the drive-away and fly-by scene, or the Car Collection with every engine, including the hypercars and track cars. One-time purchases, no subscription. RevApp is an independent app and is not affiliated with any vehicle manufacturer. Sound credits are listed inside the app.
Screenshots
Verdict
The clearest difference is review sentiment: Engine Simulator 3D at 85% against RevApp's 0%. Engine Simulator 3D also leads on rating (4.8 vs 2.0) and in-app purchases (none vs 2). RevApp's advantage is ads (none vs shown). On price, monetization model, device support and iOS requirement 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. RevApp sells 2 one-off in-app purchases. Engine Simulator 3D asks for nothing beyond the download.
Engine Simulator 3D holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: Engine Simulator 3D has 79 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of Engine Simulator 3D's written reviews are positive against 0% of RevApp's.
Engine Simulator 3D ships an update daily, RevApp fortnightly. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.
| Parameter | Engine Simulator 3D | RevApp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (79 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 85.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 79 — better | 1 |
| Update frequency | Daily — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Groundcode | Maximilian Seiler |
Customer experience
Engine Simulator 3D
RevApp
In-app purchases
Engine Simulator 3D
No in-app purchases
RevApp
- Supercar Garage$3.99
- Car Collection$6.99








