# RADii Viewer vs AR vProtractor

The clearest difference is update cadence: AR vProtractor at every 4 weeks against RADii Viewer's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

RADii Viewer ships an update every 3 months, AR vProtractor every 4 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | RADii Viewer | AR vProtractor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 129 MB | 58 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Lee](https://appshunter.io/developer/1505307948) | [Kazufumi Suzuki](https://appshunter.io/developer/1512087197) |

## What reviewers say

### RADii Viewer

[App page](https://appshunter.io/ios/app/radii-viewer/id1505325031)

**In-app purchases:** none


### AR vProtractor

[App page](https://appshunter.io/ios/app/ar-vprotractor/id1589573013)

**In-app purchases:** none


## Frequently asked questions

### Is RADii Viewer free?

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

### Is AR vProtractor free?

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

### Do RADii Viewer or AR vProtractor have ads?

Neither RADii Viewer nor AR vProtractor shows ads.

### Which is updated more often, RADii Viewer or AR vProtractor?

RADii Viewer ships an update every 3 months, and AR vProtractor every 4 weeks. Most recently, RADii Viewer was updated on October 7, 2026 and AR vProtractor on October 12, 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.*