# 3DXReaderDS 3Dビューア vs 集中力タイマー

The clearest difference is update cadence: 3DXReaderDS 3Dビューア at every 4 days against 集中力タイマー's every 8 days. 3DXReaderDS 3Dビューア also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.1). On price, ads and in-app purchases there is nothing between them.

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

3DXReaderDS 3Dビューア ships an update every 4 days, 集中力タイマー every 8 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 3DXReaderDS 3Dビューア | 集中力タイマー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 days |
| Size | 47 MB | 3 MB |
| Requires iOS | **15.6** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [株式会社シーセット (C’set Co.,Ltd.)](https://appshunter.io/developer/1812575895) | [Koki Komatsu](https://appshunter.io/developer/1796307607) |

## What reviewers say

### 3DXReaderDS 3Dビューア

[App page](https://appshunter.io/ios/app/3dxreaderds-3d/id6745497725)

**Features:** macOS Compatibility

**In-app purchases:** none


### 集中力タイマー

[App page](https://appshunter.io/ios/app/id6796582976)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3DXReaderDS 3Dビューア free?

3DXReaderDS 3Dビューア is free to download, with no in-app purchases.

### Is 集中力タイマー free?

集中力タイマー is free to download, with no in-app purchases.

### Do 3DXReaderDS 3Dビューア or 集中力タイマー have ads?

Neither 3DXReaderDS 3Dビューア nor 集中力タイマー shows ads.

### Which is updated more often, 3DXReaderDS 3Dビューア or 集中力タイマー?

3DXReaderDS 3Dビューア ships an update every 4 days, and 集中力タイマー every 8 days. Most recently, 3DXReaderDS 3Dビューア was updated on October 16, 2026 and 集中力タイマー on October 13, 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.*