# CTvox vs Radio Interactive

The clearest difference is update cadence: Radio Interactive at every 4 months against CTvox's every 8 months. CTvox's advantage is iOS requirement (8.0 vs 13.0). 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.

CTvox ships an update every 8 months, Radio Interactive every 4 months. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CTvox | Radio Interactive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ctvox/id604830955/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 9 MB | 39 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bruker microCT](https://appshunter.io/developer/604830958) | [Radio Interactive GmbH](https://appshunter.io/developer/1744814792) |

## What reviewers say

### CTvox

[App page](https://appshunter.io/ios/app/ctvox/id604830955)

Visualize volumetric data in 3D on your iOS device. This app uses volume rendering to allow interactive exploration of 3D voxel data like CT and MRI scans. It provides an intuitive way to view complex scientific datasets.

**Highlights:** 3D volumetric data visualization, Volume rendering technique, Interactive exploration of 3D voxel data, Supports CT and MRI scans, Intuitive data interpretation

**Features:** macOS Compatibility

**In-app purchases:** none


### Radio Interactive

[App page](https://appshunter.io/ios/app/radio-interactive/id6502262078)

**In-app purchases:** none


## Frequently asked questions

### Is CTvox free?

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

### Is Radio Interactive free?

Radio Interactive is free to download, with no in-app purchases.

### Do CTvox or Radio Interactive have ads?

Neither CTvox nor Radio Interactive shows ads.

### Which is updated more often, CTvox or Radio Interactive?

CTvox ships an update every 8 months, and Radio Interactive every 4 months. Most recently, CTvox was updated on October 6, 2026 and Radio Interactive on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*