New: Challenges with Game Center medals, a Vehicle tab with a 3D car and brakes, and an experimental turbo. Build an engine, then prove it on the test track.
Build an engine and hear it run. Engine Lab is a touch-first engine simulator: design anything from a single to a V12, then hear it idle, rev and pull to the limiter, live on your iPhone or iPad.
BUILD BENCH
• Set the layout, 1 to 12 cylinders, bore, stroke, firing order and redline.
• Hear each change as you make it, and hold to rev.
• Try different headers, exhausts and mufflers.
• Compare against a saved version by ear or on the dyno.
SEE IT IN 3D
• Every engine, including your own builds, becomes a 3D model driven by the live simulation: pistons, crank, cams, valves and glowing headers.
• Orbit, zoom, slow it down, switch between X-ray and solid, and tap any part for live readings. The classic 2D cutaway is one tap away.
DRIVE IT
• Manual or automatic gearbox with clutch and road speed, plus a gearing chart with top speed in each gear.
• Simulated dyno pulls with torque and power curves.
• Six built-in engines: Honda B18C5 VTEC, Honda TRX520 single, BMW M52B28, Toyota 2JZ, Audi 2.3 inline-5 and GM LS V8.
IMPORT AND SHARE
• Import engine-sim .mr scripts and share your builds as .mr files.
• Export a WAV recorded by the on-device simulator.
No account, network service or microphone permission is required. An optional one-time Pro purchase unlocks advanced tuning and unlimited saved builds; the free plan keeps three. Values are simulated estimates for exploration, not certified engineering measurements.
I have it three stars because it’s okay, but it’s a bit hard to change the engine out, so I’m just suggesting that you guys try making engine swapping a bit simpler, at least for people who don’t have the availability of the bottom access bar with the garage thing
Developer Response
Thanks for your feedback! Version 1.5 fixes the issue that hid the bottom navigation bar on pre-iOS 26 versions. I’ve also made engine swapping easier, you can tap the engine name on the Drive screen to choose another engine directly. Feel free to update and let me know how it works for you!
• New Challenges: build a car to a brief, run it on the simulated test track and earn medals, with Game Center leaderboards.
• New Vehicle tab: put your engine in a 3D car with a gearbox, driven wheels, tyre slip and working brakes.
• New experimental turbo with spool, wastegate, intercooler and knock control, and boost on Drive.
• More to tune: port fuel injection, custom cams, headers, runner lengths, throttle body and crankshaft types.
• Dyno pulls now run on the physics, and Live graphs show temperature and fuel for every cylinder.
• One redesigned Drive cockpit on iPhone and iPad, with brake, throttle and hold to rev. The rev limiter now cuts fuel too.
Version 1.7
The developer, Jan Sokol, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Jan Sokol
Size
16.5 MB
Category
Education
Compatibility
Requires iOS 18.0 or later.
iPhone Requires iOS 18.0 or later.
iPad Requires iPadOS 18.0 or later.
Mac Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
