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.






250+ iOS apps & games curated and reviewed
From beginner-friendly picks to power-user tools, our engine building list covers 250+ iPhone apps and games updated through October 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.3★ (127) | No | Yes | Oct 2026 | ||
| 2 | Free | 4.5★ (27K) | Yes | Yes | Oct 2026 | ||
| 3 | Free | 3.0★ (1) | No | Yes | Oct 2026 | ||
| 4 | Free | 3.9★ (7) | No | No | May 2026 | ||
| 5 | Free | 4.4★ (4.4K) | Yes | Yes | Oct 2026 | ||
| 6 | Free | 4.1★ (65) | Yes | No | Oct 2026 | ||
| 7 | Free | 5.0★ (3) | No | Yes | Jul 2026 | ||
| 8 | Free | — | No | Yes | Sep 2026 |






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.






Restore, customize, and sell a variety of vehicles in this immersive auto repair simulation. Engage in detailed mechanical work, body repairs, and even car wash and detailing services. Test your creations on the track and become the ultimate car mechanic.






Explore engine mechanics with a touch-first simulator. Build, tune, and test custom engines, observing animations and hearing synthesized exhaust sounds. Export your creations as WAV files.