# DRA AR vs 3D Volume Calculator App

The clearest difference is in-app purchases: DRA AR at none against 3D Volume Calculator App's 1. DRA AR also leads on iOS requirement (15.0 vs 18.6). 3D Volume Calculator App's advantage is update cadence (every 9 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. 3D Volume Calculator App sells 1 in-app purchase, starting at $4.99 per month. DRA AR asks for nothing beyond the download.

DRA AR ships an update every 6 months, 3D Volume Calculator App every 9 days. The most recent releases landed on October 30, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | DRA AR | 3D Volume Calculator App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Size | 6 MB | 33 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [株式会社建築ピボット](https://appshunter.io/developer/1450903325) | [Kazuto Abe](https://appshunter.io/developer/6792266311) |

## What reviewers say

### DRA AR

[App page](https://appshunter.io/ios/app/dra-ar/id6468973486)

**In-app purchases:** none


### 3D Volume Calculator App

[App page](https://appshunter.io/ios/app/3d-volume-calculator-app/id6792427260)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Plan | $4.99 | per month |


## Frequently asked questions

### Is DRA AR free?

DRA AR is free to download, with no in-app purchases.

### Is 3D Volume Calculator App free?

3D Volume Calculator App is free to download, with in-app purchases available.

### Do DRA AR or 3D Volume Calculator App have ads?

Neither DRA AR nor 3D Volume Calculator App shows ads.

### Which is updated more often, DRA AR or 3D Volume Calculator App?

DRA AR ships an update every 6 months, and 3D Volume Calculator App every 9 days. Most recently, DRA AR was updated on October 30, 2026 and 3D Volume Calculator App on October 21, 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.*