# Engineering Adventures vs Sudokufeuds

The clearest difference is ads: Engineering Adventures at none against Sudokufeuds's shown. Engineering Adventures also leads on iOS requirement (8.0 vs 12.0). Sudokufeuds's advantage is update cadence (fortnightly vs every 7 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Engineering Adventures ships an update every 7 months, Sudokufeuds fortnightly. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Engineering Adventures | Sudokufeuds |
| --- | --- | --- |
| 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 | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 159 MB | 65 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Museum of Science](https://appshunter.io/developer/700803386) | [Nick Hansen](https://appshunter.io/developer/1771505887) |

## 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


### Sudokufeuds

[App page](https://appshunter.io/ios/app/sudokufeuds/id6736343075)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Engineering Adventures free?

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

### Is Sudokufeuds free?

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

### Do Engineering Adventures or Sudokufeuds have ads?

Sudokufeuds shows ads; Engineering Adventures does not.

### Which is updated more often, Engineering Adventures or Sudokufeuds?

Engineering Adventures ships an update every 7 months, and Sudokufeuds fortnightly. Most recently, Engineering Adventures was updated on September 29, 2026 and Sudokufeuds on October 10, 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.*