# CTBrowser vs Voxelis

The clearest difference is update cadence: Voxelis at weekly against CTBrowser's every 9 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.

CTBrowser ships an update every 9 months, Voxelis weekly. The most recent releases landed on September 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | CTBrowser | Voxelis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ctbrowser/id6741902913/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | Free | — |
| Size | 1 MB | 8 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [Ippei Akiya](https://appshunter.io/developer/1796137539) | [Ruslan Dautov](https://appshunter.io/developer/1795335473) |

## What reviewers say

### CTBrowser

[App page](https://appshunter.io/ios/app/ctbrowser/id6741902913)

This medical app allows users to browse CDISC Terminology by downloading files from NCI EVS. Users can search codelists and view detailed information about them and individual terms. Most features are available offline once terminology files are downloaded.

**Highlights:** Browse CDISC Terminology, Download terminology files from NCI EVS, Search codelists, View codelist and term details, Offline access to downloaded files

**In-app purchases:** none


### Voxelis

[App page](https://appshunter.io/ios/app/voxelis-dicom-viewer/id6761736449)

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

**In-app purchases:** none


## Frequently asked questions

### Is CTBrowser free?

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

### Is Voxelis free?

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

### Do CTBrowser or Voxelis have ads?

Neither CTBrowser nor Voxelis shows ads.

### Which is updated more often, CTBrowser or Voxelis?

CTBrowser ships an update every 9 months, and Voxelis weekly. Most recently, CTBrowser was updated on September 16, 2026 and Voxelis on September 20, 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.*