# Boskalis Projecten vs Blybahn

The clearest difference is in-app purchases: Boskalis Projecten at none against Blybahn's 6. Blybahn's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Blybahn sells 6 one-off in-app purchases. Boskalis Projecten asks for nothing beyond the download.

Boskalis Projecten ships an update every 10 months, Blybahn every 2 weeks. The most recent releases landed on September 8, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Boskalis Projecten | Blybahn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Size | 60 MB | 77 MB |
| Requires iOS | **15.0** | 15.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Boskalis](https://appshunter.io/developer/1367855648) | [Zooma B.V.](https://appshunter.io/developer/418861795) |

## What reviewers say

### Boskalis Projecten

[App page](https://appshunter.io/ios/app/boskalis-projecten/id1580073010)

**Features:** macOS Compatibility

**In-app purchases:** none


### Blybahn

[App page](https://appshunter.io/ios/app/blybahn/id6745085451)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 diamonds | $1.00 | one-time |
| 50 diamonds | $3.99 | one-time |
| 100 diamonds | $8.99 | one-time |
| 250 diamonds | $22.99 | one-time |
| 500 diamonds | $44.99 | one-time |
| 1000 diamonds | $89.99 | one-time |


## Frequently asked questions

### Is Boskalis Projecten free?

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

### Is Blybahn free?

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

### Do Boskalis Projecten or Blybahn have ads?

Boskalis Projecten shows ads; Blybahn does not.

### Which is updated more often, Boskalis Projecten or Blybahn?

Boskalis Projecten ships an update every 10 months, and Blybahn every 2 weeks. Most recently, Boskalis Projecten was updated on September 8, 2026 and Blybahn on September 14, 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.*