# Door Slammers 3 Drag Racing vs Engine Simulator

The clearest difference is review sentiment: Engine Simulator at 79% against Door Slammers 3 Drag Racing's 49%. Engine Simulator also leads on rating (4.3 vs 3.9). Door Slammers 3 Drag Racing's advantage is update cadence (every 5 days vs every 3 weeks) and ratings volume (460 vs 127). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Door Slammers 3 Drag Racing sells 10 one-off in-app purchases and Engine Simulator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Engine Simulator holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 460 and 127 respectively. Written reviews point the same way: 49% of Door Slammers 3 Drag Racing's written reviews are positive against 79% of Engine Simulator's.

Door Slammers 3 Drag Racing ships an update every 5 days, Engine Simulator every 3 weeks. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Door Slammers 3 Drag Racing | Engine Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (460 ratings)](https://appshunter.io/ios/app/door-slammers-3-drag-racing/id6744000347/reviews) | **[4.3 (127 ratings)](https://appshunter.io/ios/app/engine-simulator/id6772016143/reviews)** |
| Number of ratings | **460** | 127 |
| Positive reviews | 48.9% of reviews | **78.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#44** | #55 |
| Size | 2.0 GB | 22 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Virtual Dyno](https://appshunter.io/developer/515382184) | [MUHAMMAD SAAD ATA](https://appshunter.io/developer/6772016385) |

## What reviewers say

### Door Slammers 3 Drag Racing

[App page](https://appshunter.io/ios/app/door-slammers-3-drag-racing/id6744000347)

**Currently charting:** #44 Top Grossing · Racing, #164 Top Free · Racing (US App Store)

Experience realistic drag racing focused on driver skill and precise tuning. Master launch timing, shift points, and vehicle upgrades to compete against others in challenging races. Earn upgrades through gameplay or use in-app purchases for faster customization.

**Highlights:** Realistic drag racing physics, Skill-based gameplay, In-depth vehicle tuning, Multiplayer competition, Earnable upgrades, In-app purchases for customization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Gold Coins | $1.99 | one-time |
| 25,000 Game Cash | $1.99 | one-time |
| 100,000 Game Cash | $4.99 | one-time |
| 50 Gold Coins | $4.99 | one-time |
| 150 Gold Coins | $9.99 | one-time |
| 250,000 Game Cash | $9.99 | one-time |
| 300 Gold Coins | $14.99 | one-time |
| DS3 500,000 Cash | $14.99 | one-time |
| 1,000,000 Game Cash | $19.99 | one-time |
| 500 Gold Coins | $19.99 | one-time |


### Engine Simulator

[App page](https://appshunter.io/ios/app/engine-simulator/id6772016143)

**Currently charting:** #55 Top Grossing · Racing, #69 Top Free · Racing (US App Store)

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:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $8.99 | one-time |


## Frequently asked questions

### Is Door Slammers 3 Drag Racing free?

Door Slammers 3 Drag Racing is free to download, with in-app purchases available.

### Is Engine Simulator free?

Engine Simulator is free to download, with in-app purchases available.

### Which has better reviews, Door Slammers 3 Drag Racing or Engine Simulator?

Engine Simulator is rated higher. Door Slammers 3 Drag Racing averages 3.9 out of 5 from 460 ratings, while Engine Simulator averages 4.3 from 127 ratings.

### Do Door Slammers 3 Drag Racing or Engine Simulator have ads?

Neither Door Slammers 3 Drag Racing nor Engine Simulator shows ads.

### Which is updated more often, Door Slammers 3 Drag Racing or Engine Simulator?

Door Slammers 3 Drag Racing ships an update every 5 days, and Engine Simulator every 3 weeks. Most recently, Door Slammers 3 Drag Racing was updated on October 19, 2026 and Engine Simulator on October 18, 2026.

### Which is more popular, Door Slammers 3 Drag Racing or Engine Simulator?

Door Slammers 3 Drag Racing currently peaks at #44 in the App Store charts, and Engine Simulator at #55. Chart position reflects recent download velocity rather than total install base.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*