# Blybahn vs Unitas Amsterdam

The clearest difference is in-app purchases: Unitas Amsterdam at none against Blybahn's 6. Blybahn's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Blybahn ships an update every 2 weeks, Unitas Amsterdam every 5 months. The most recent releases landed on October 18, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Blybahn | Unitas Amsterdam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Size | 77 MB | 49 MB |
| Requires iOS | 15.3 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Zooma B.V.](https://appshunter.io/developer/418861795) | [Youmie B.V.](https://appshunter.io/developer/6822205477) |

## What reviewers say

### 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 |


### Unitas Amsterdam

[App page](https://appshunter.io/ios/app/unitas-amsterdam/id6756673659)

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

**In-app purchases:** none


## Frequently asked questions

### Is Blybahn free?

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

### Is Unitas Amsterdam free?

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

### Do Blybahn or Unitas Amsterdam have ads?

Neither Blybahn nor Unitas Amsterdam shows ads.

### Which is updated more often, Blybahn or Unitas Amsterdam?

Blybahn ships an update every 2 weeks, and Unitas Amsterdam every 5 months. Most recently, Blybahn was updated on October 18, 2026 and Unitas Amsterdam on October 22, 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.*