Comparison

Engine Simulator vs Model Engine Builder

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

Head to head
About

Engine Simulator

Explore the physics of piston engines by building, tuning, and testing them. Simulate combustion and rigid body motion in real-time. Compete with others on a global leaderboard by posting your creations.

Highlights
  • Physics-based engine simulation
  • Build engines from scratch
  • Tune fuel and ignition maps
  • Real-time power and torque readings
  • 3D engine visualization
  • Global leaderboard
Features
Read full description

Engine Simulator is a physics-based piston engine sandbox. The sound and motion come from a real rigid body simulation of the crank, pistons, valves, and combustion, not recordings. Start an engine, work the throttle, and tune its fuel and ignition maps in the ECU. Build one from scratch (layout, bore, stroke, cam, firing order) or describe what you want and have it generated on device. Watch it run in 3D, read live power and torque on the dyno, or push it past the limiter until it breaks. Post your engines to the global leaderboard and compare against other builders. Engine Simulator for iOS is an unofficial port. It is not affiliated with, endorsed by, or supported by AngeTheGreat (Ange Yaghi), the creator of the original open source Engine Simulator. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Community Guidelines: https://saada7553.github.io/community-guidelines.html Privacy Policy: https://saada7553.github.io/privacy-policy.html Support: https://saada7553.github.io/support.html

About

Model Engine Builder

Features
Read full description

Build a miniature engine one part at a time in a retro pixel workshop. Choose from eight designs: diesel, OHV, DOHC, two-stroke, parallel twin, inline four, V-twin and boxer four. Fit parts in order, tighten bolts to the right torque, adjust each engine’s setup and time its ignition. The same engine model appears in selection and assembly. Follow moving pistons, connecting rods and the compact DOHC timing chain as you build. Every stage contributes to a score out of 1,000. Keep a personal best and recent build history for each engine on your device. Three engines are available from the start. Unlock the others by completing optional rewarded ads. The non-consumable Remove Ads purchase removes advertising and unlocks all engines; purchases can be restored. Play in English, Korean, Japanese, French, Spanish, German, Traditional Chinese, Thai, Italian or Hindi. Change language in the globe menu. Advertising privacy choices are available where required. A stylized assembly and timing game, not a repair manual or engineering simulator. Compete on a separate Game Center leaderboard for each of the eight engines. Online rankings require Game Center sign-in.

Screenshots

Engine Simulator4 screens
Model Engine Builder4 screens

Verdict

The call

The clearest difference is ads: Engine Simulator at none against Model Engine Builder's shown. Engine Simulator also leads on chart position (#27 vs unranked). Model Engine Builder's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.6 vs 18.6). On price, in-app purchases and device support 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. Engine Simulator sells 1 one-off in-app purchase and Model Engine Builder sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Engine Simulator ships an update every 2 months, Model Engine Builder every 2 weeks. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 7 level
Engine Simulator versus Model Engine Builder: the parameters behind the verdict, then further details
ParameterEngine SimulatorModel Engine Builder
PriceFreeFree
Rating4.3 (98 ratings) — better—
Positive reviews80.8% of reviews—
Number of ratings98 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#27 — better—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS18.615.6 — better
Further details — not scored
Size22 MB20 MB
Age rating4+4+
DeveloperMUHAMMAD SAAD ATAMIN GYu OH

In-app purchases

1 purchases

Engine Simulator

One-time1
  • Lifetime$8.99
1 purchases

Model Engine Builder

One-time1
  • removeads$1.99

Questions

Is Engine Simulator free?
Engine Simulator is free to download, with in-app purchases available.
Is Model Engine Builder free?
Model Engine Builder is free to download, with in-app purchases available.
Do Engine Simulator or Model Engine Builder have ads?
Model Engine Builder shows ads; Engine Simulator does not.
Which is updated more often, Engine Simulator or Model Engine Builder?
Engine Simulator ships an update every 2 months, and Model Engine Builder every 2 weeks. Most recently, Engine Simulator was updated on October 6, 2026 and Model Engine Builder on October 4, 2026.

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