# Engineering Adventures vs Slime Blocks

The clearest difference is in-app purchases: Engineering Adventures at none against Slime Blocks's 5. Engineering Adventures also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). Slime Blocks's advantage is update cadence (every 11 days vs every 7 months). On price and device support there is nothing between them.

Both are free to download. Slime Blocks sells 5 one-off in-app purchases. Engineering Adventures asks for nothing beyond the download.

Engineering Adventures ships an update every 7 months, Slime Blocks every 11 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Engineering Adventures | Slime Blocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/engineering-adventures/id724905971/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 159 MB | 70 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Museum of Science](https://appshunter.io/developer/700803386) | [Mykola Ovcharenko](https://appshunter.io/developer/1755879685) |

## What reviewers say

### Engineering Adventures

[App page](https://appshunter.io/ios/app/engineering-adventures/id724905971)

This app complements an out-of-school engineering curriculum by providing audio messages triggered by QR codes in accompanying journals. It covers 11 different engineering units, from building earthquake-resistant structures to designing space gloves.

**Highlights:** QR code scanner, Audio messages from characters, 11 engineering units, Complements curriculum, Interactive learning

**Features:** macOS Compatibility

**In-app purchases:** none


### Slime Blocks

[App page](https://appshunter.io/ios/app/slime-blocks-offline-game/id6754824231)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Power-Up Pack | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Mega Power-Up Pack | $1.99 | one-time |
| Premium Skin Bundle | $2.99 | one-time |
| Ultimate Bundle | $3.99 | one-time |


## Frequently asked questions

### Is Engineering Adventures free?

Engineering Adventures is free to download, with no in-app purchases.

### Is Slime Blocks free?

Slime Blocks is free to download, with in-app purchases available.

### Do Engineering Adventures or Slime Blocks have ads?

Slime Blocks shows ads; Engineering Adventures does not.

### Which is updated more often, Engineering Adventures or Slime Blocks?

Engineering Adventures ships an update every 7 months, and Slime Blocks every 11 days. Most recently, Engineering Adventures was updated on October 15, 2026 and Slime Blocks on October 14, 2026.

---

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