# Engine Simulator vs Armor Sandbox

The clearest difference is update cadence: Armor Sandbox at daily against Engine Simulator's every 3 weeks. Armor Sandbox also leads on rating (4.6 vs 4.3) and review sentiment (88% vs 76%). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Armor Sandbox holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 173 and 109 respectively. Written reviews point the same way: 76% of Engine Simulator's written reviews are positive against 88% of Armor Sandbox's.

Engine Simulator ships an update every 3 weeks, Armor Sandbox daily. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Engine Simulator | Armor Sandbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (173 ratings)](https://appshunter.io/ios/app/engine-simulator/id6772016143/reviews) | **[4.6 (109 ratings)](https://appshunter.io/ios/app/armor-sandbox-2d-physics/id6821128741/reviews)** |
| Number of ratings | **173** | 109 |
| Positive reviews | 75.5% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#48** | #86 |
| Size | 22 MB | 14 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | +4 | 9+ |
| Developer | [MUHAMMAD SAAD ATA](https://appshunter.io/developer/6772016385) | [Vitor Japiassu](https://appshunter.io/developer/6821128743) |

## What reviewers say

### Engine Simulator

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

**Currently charting:** #48 Top Grossing · Racing, #52 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 |


### Armor Sandbox

[App page](https://appshunter.io/ios/app/armor-sandbox-2d-physics/id6821128741)

**Currently charting:** #86 Top Free · Simulation (US App Store)

Explore realistic 2D physics simulations of destruction and ballistics. Experiment with over 110 materials, 70 projectiles, and 90 targets, including detailed vehicle cutaways. Create and share your own designs with a vibrant community.

**Highlights:** Realistic 2D physics engine, Material property simulation, Ballistics and destruction effects, Extensive material and projectile library, Detailed vehicle cutaways, Customizable target and projectile creation, Circuitry and electrical simulation

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sci-Fi Expansion | $2.99 | one-time |
| Armor Sandbox Complete | $8.99 | one-time |
| Everything: Complete + Sci-Fi | $9.99 | one-time |


## Frequently asked questions

### Is Engine Simulator free?

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

### Is Armor Sandbox free?

Armor Sandbox is free to download, with in-app purchases available.

### Which has better reviews, Engine Simulator or Armor Sandbox?

Armor Sandbox is rated higher. Engine Simulator averages 4.3 out of 5 from 173 ratings, while Armor Sandbox averages 4.6 from 109 ratings.

### Do Engine Simulator or Armor Sandbox have ads?

Neither Engine Simulator nor Armor Sandbox shows ads.

### Which is updated more often, Engine Simulator or Armor Sandbox?

Engine Simulator ships an update every 3 weeks, and Armor Sandbox daily. Most recently, Engine Simulator was updated on November 7, 2026 and Armor Sandbox on November 8, 2026.

### Which is more popular, Engine Simulator or Armor Sandbox?

Engine Simulator currently peaks at #48 in the App Store charts, and Armor Sandbox at #86. Chart position reflects recent download velocity rather than total install base.

---

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