# 鉄筋電卓 − 重量・定尺・配筋・生コン vs Quick3D CAD Viewer

The clearest difference is in-app purchases: Quick3D CAD Viewer at none against 鉄筋電卓 − 重量・定尺・配筋・生コン's 1. 鉄筋電卓 − 重量・定尺・配筋・生コン's advantage is ads (none vs shown) and iOS requirement (15.0 vs 18.6). On price, update cadence and device support there is nothing between them.

Both are free to download. 鉄筋電卓 − 重量・定尺・配筋・生コン sells 1 one-off in-app purchase. Quick3D CAD Viewer asks for nothing beyond the download.

鉄筋電卓 − 重量・定尺・配筋・生コン ships an update weekly, Quick3D CAD Viewer every 2 weeks. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 鉄筋電卓 − 重量・定尺・配筋・生コン | Quick3D CAD Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 62 MB | 28 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Moeki Kozawa](https://appshunter.io/developer/1770452138) | [Ryo Tazaki](https://appshunter.io/developer/6814366399) |

## What reviewers say

### 鉄筋電卓 − 重量・定尺・配筋・生コン

[App page](https://appshunter.io/ios/app/id6783316434)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rebar Calc Pro | $4.99 | one-time |


### Quick3D CAD Viewer

[App page](https://appshunter.io/ios/app/quick3d-cad-viewer/id6816122073)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 鉄筋電卓 − 重量・定尺・配筋・生コン free?

鉄筋電卓 − 重量・定尺・配筋・生コン is free to download, with in-app purchases available.

### Is Quick3D CAD Viewer free?

Quick3D CAD Viewer is free to download, with no in-app purchases.

### Do 鉄筋電卓 − 重量・定尺・配筋・生コン or Quick3D CAD Viewer have ads?

Quick3D CAD Viewer shows ads; 鉄筋電卓 − 重量・定尺・配筋・生コン does not.

### Which is updated more often, 鉄筋電卓 − 重量・定尺・配筋・生コン or Quick3D CAD Viewer?

鉄筋電卓 − 重量・定尺・配筋・生コン ships an update weekly, and Quick3D CAD Viewer every 2 weeks. Most recently, 鉄筋電卓 − 重量・定尺・配筋・生コン was updated on October 28, 2026 and Quick3D CAD Viewer on October 29, 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.*