# Smart Construction Quick3D vs 黒歴史検索 for X

The clearest difference is in-app purchases: Smart Construction Quick3D at none against 黒歴史検索 for X's 1. Smart Construction Quick3D also leads on ads (none vs shown) and iOS requirement (15.2 vs 17.6). On price, update cadence and device support there is nothing between them.

Both are free to download. 黒歴史検索 for X sells 1 in-app purchase, starting at $2.99 per 7 days. Smart Construction Quick3D asks for nothing beyond the download.

Smart Construction Quick3D ships an update every 3 weeks, 黒歴史検索 for X monthly. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Smart Construction Quick3D | 黒歴史検索 for X |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 39 MB | 14 MB |
| Requires iOS | **15.2** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EARTHBRAIN Ltd.](https://appshunter.io/developer/1392320623) | [IBUKI YOSHIDA](https://appshunter.io/developer/1856209051) |

## What reviewers say

### Smart Construction Quick3D

[App page](https://appshunter.io/ios/app/smart-construction-quick3d/id1627645913)

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

**In-app purchases:** none


### 黒歴史検索 for X

[App page](https://appshunter.io/ios/app/for-x/id6760097574)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム（週間） | $2.99 | per 7 days |


## Frequently asked questions

### Is Smart Construction Quick3D free?

Smart Construction Quick3D is free to download, with no in-app purchases.

### Is 黒歴史検索 for X free?

黒歴史検索 for X is free to download, with in-app purchases available.

### Do Smart Construction Quick3D or 黒歴史検索 for X have ads?

黒歴史検索 for X shows ads; Smart Construction Quick3D does not.

### Which is updated more often, Smart Construction Quick3D or 黒歴史検索 for X?

Smart Construction Quick3D ships an update every 3 weeks, and 黒歴史検索 for X monthly. Most recently, Smart Construction Quick3D was updated on October 10, 2026 and 黒歴史検索 for X on October 9, 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.*