# Block Design Test Practice vs 暗算ラン

The clearest difference is in-app purchases: 暗算ラン at none against Block Design Test Practice's 1. Block Design Test Practice's advantage is iOS requirement (14.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Block Design Test Practice sells 1 one-off in-app purchase. 暗算ラン asks for nothing beyond the download.

## The numbers

| Metric | Block Design Test Practice | 暗算ラン |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 111 MB | 8 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Perfect Consulting B.V.](https://appshunter.io/developer/1562668783) | [Izamu Mari](https://appshunter.io/developer/6771616594) |

## What reviewers say

### Block Design Test Practice

[App page](https://appshunter.io/ios/app/block-design-test-practice/id6470751632)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Paper Cubes | $3.99 | one-time |


### 暗算ラン

[App page](https://appshunter.io/ios/app/id6771616592)

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

**In-app purchases:** none


## Frequently asked questions

### Is Block Design Test Practice free?

Block Design Test Practice is free to download, with in-app purchases available.

### Is 暗算ラン free?

暗算ラン is free to download, with no in-app purchases.

### Do Block Design Test Practice or 暗算ラン have ads?

Neither Block Design Test Practice nor 暗算ラン shows ads.

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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.*