# Evertech Sandbox vs Model Engine Builder

Evertech Sandbox and Model Engine Builder are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Evertech Sandbox sells 16 one-off in-app purchases and Model Engine Builder sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Evertech Sandbox ships an update every 3 weeks, Model Engine Builder every 2 weeks. The most recent releases landed on October 18, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Evertech Sandbox | Model Engine Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (2.6K ratings)](https://appshunter.io/ios/app/evertech-sandbox/id1422791215/reviews)** | — |
| Number of ratings | **2.6K** | — |
| Positive reviews | 69.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 379 MB | 20 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vitaly Sumin](https://appshunter.io/developer/1422791214) | [MIN GYu OH](https://appshunter.io/developer/6803589847) |

## What reviewers say

### Evertech Sandbox

[App page](https://appshunter.io/ios/app/evertech-sandbox/id1422791215)

Build and experiment with complex mechanisms and vehicles using a variety of blocks and components.  Unleash your creativity to construct anything from cars and trains to robots and rockets.  Enhance your creations with mods for an even more engaging engineering experience.

**Highlights:** Build custom mechanisms, Create cars, trains, robots, rockets, Use various blocks and components, Install mods for enhanced gameplay, Experiment with logic gates, Paintable blocks and paints

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Golden Apple | $0.29 | one-time |
| First Taste | $0.99 | one-time |
| Glass Cabs Bundle | $1.99 | one-time |
| Speech Block | $1.99 | one-time |
| Strobe Lights 50% discount | $1.99 | one-time |
| Remove Ads Deal | $1.99 | one-time |
| Strobe Lights | $2.99 | one-time |
| VK1-A Jet 50% discount | $2.99 | one-time |
| Rainy World Discount 50% | $2.99 | one-time |
| Sci-Fi Cab | $3.99 | one-time |
| Police Beacon | $3.99 | one-time |
| The Ultimate Pack (-80%) | $3.99 | one-time |
| Got the taste | $4.99 | one-time |
| VK1-A Jet | $5.99 | one-time |
| Rainy World | $6.99 | one-time |
| The Ultimate Pack (-50%) | $9.99 | one-time |

**What reviewers like**

- 🚀 Endless possibilities
- 🔧 Customizable creations
- 👍 Engaging sandbox gameplay
- 💡 Mod support

**What reviewers complain about**

- 🔋 Battery draining issues
- 🐛 Crashes and glitches
- 📺 Excessive advertisements
- 🔒 Lack of save/load functionality

**Reported bugs**

- Disappearing blocks and creations
- Inability to load custom maps/mods
- Unresponsive controls and steering issues

**Requested features**

- Welding tool
- Pistons and advanced mechanics
- Multiplayer mode
- Improved physics and controls
- Optimization for larger builds


### Model Engine Builder

[App page](https://appshunter.io/ios/app/model-engine-builder/id6803801661)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| removeads | $1.99 | one-time |


## Frequently asked questions

### Is Evertech Sandbox free?

Evertech Sandbox 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 Evertech Sandbox or Model Engine Builder have ads?

Both Evertech Sandbox and Model Engine Builder show ads.

### Which is updated more often, Evertech Sandbox or Model Engine Builder?

Evertech Sandbox ships an update every 3 weeks, and Model Engine Builder every 2 weeks. Most recently, Evertech Sandbox was updated on October 18, 2026 and Model Engine Builder on October 4, 2026.

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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.*