# つながるDR vs Smart Construction Quick3D

The clearest difference is iOS requirement: つながるDR at 13.0 against Smart Construction Quick3D's 15.2. On price, update cadence, 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.

つながるDR ships an update fortnightly, Smart Construction Quick3D every 3 weeks. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | つながるDR | Smart Construction Quick3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 84 MB | 37 MB |
| Requires iOS | **13.0** | 15.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NextDrive Co.](https://appshunter.io/developer/1005329987) | [EARTHBRAIN Ltd.](https://appshunter.io/developer/1392320623) |

## What reviewers say

### つながるDR

[App page](https://appshunter.io/ios/app/dr/id1574974553)

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

**In-app purchases:** none


### Smart Construction Quick3D

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

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

**In-app purchases:** none


## Frequently asked questions

### Is つながるDR free?

つながるDR is free to download, with no in-app purchases.

### Is Smart Construction Quick3D free?

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

### Do つながるDR or Smart Construction Quick3D have ads?

Neither つながるDR nor Smart Construction Quick3D shows ads.

### Which is updated more often, つながるDR or Smart Construction Quick3D?

つながるDR ships an update fortnightly, and Smart Construction Quick3D every 3 weeks. Most recently, つながるDR was updated on September 9, 2026 and Smart Construction Quick3D on September 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.*