# Interactive Brain Activation for fMRI Data vs EdnoVR Viewer

The clearest difference is update cadence: Interactive Brain Activation for fMRI Data at every 2 days against EdnoVR Viewer's every 29 months. Interactive Brain Activation for fMRI Data also leads on iOS requirement (9.1 vs 15.6). 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.

Interactive Brain Activation for fMRI Data ships an update every 2 days, EdnoVR Viewer every 29 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Interactive Brain Activation for fMRI Data | EdnoVR Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 29 months |
| Size | 86 MB | 2 MB |
| Requires iOS | **9.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [King Abdullah University of Science & Technology](https://appshunter.io/developer/514099091) | [EDNOVATION (SEA) PTE. LTD.](https://appshunter.io/developer/1735247195) |

## What reviewers say

### Interactive Brain Activation for fMRI Data

[App page](https://appshunter.io/ios/app/interactive-brain-activation-for-fmri-data/id1114700705)

**Features:** macOS Compatibility

**In-app purchases:** none


### EdnoVR Viewer

[App page](https://appshunter.io/ios/app/ednovr-viewer/id1506561545)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interactive Brain Activation for fMRI Data free?

Interactive Brain Activation for fMRI Data is free to download, with no in-app purchases.

### Is EdnoVR Viewer free?

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

### Do Interactive Brain Activation for fMRI Data or EdnoVR Viewer have ads?

Neither Interactive Brain Activation for fMRI Data nor EdnoVR Viewer shows ads.

### Which is updated more often, Interactive Brain Activation for fMRI Data or EdnoVR Viewer?

Interactive Brain Activation for fMRI Data ships an update every 2 days, and EdnoVR Viewer every 29 months. Most recently, Interactive Brain Activation for fMRI Data was updated on October 26, 2026 and EdnoVR Viewer on October 27, 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.*