# Rad Index vs MRI Plan

The clearest difference is iOS requirement: MRI Plan at 13.0 against Rad Index's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Rad Index sells 1 one-off in-app purchase and MRI Plan sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Rad Index | MRI Plan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/mri-plan/id6787633208/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | — | Freemium |
| Size | 39 MB | 195 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Simone Zen](https://appshunter.io/developer/1896760438) | [Shakhnoza Mukhsinova](https://appshunter.io/developer/6787633450) |

## What reviewers say

### Rad Index

[App page](https://appshunter.io/ios/app/rad-index/id6770671896)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rad Index Premium | $8.99 | one-time |


### MRI Plan

[App page](https://appshunter.io/ios/app/mri-plan/id6787633208)

This interactive tool allows users to practice and improve their MRI planning skills. It offers step-by-step guidance, visual feedback, and explanations for slice positioning, angulation, coverage, and field of view. Explore various MRI exams and protocols at your own pace.

**Highlights:** Interactive slice positioning and angulation practice, Adjust coverage and field of view (FOV), Work with axial, sagittal, coronal, and oblique planning, Step-by-step guidance and visual feedback, Explore multiple MRI exams and protocols, Track learning progress

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MRI Plan Pro | $19.99 | per month |
| MRI Plan Pro Annual | $149.99 | per year |


## Frequently asked questions

### Is Rad Index free?

Rad Index is free to download, with in-app purchases available.

### Is MRI Plan free?

MRI Plan is free to download, with in-app purchases available.

### Do Rad Index or MRI Plan have ads?

Neither Rad Index nor MRI Plan shows ads.

### Which is updated more often, Rad Index or MRI Plan?

Rad Index ships an update fortnightly, and MRI Plan fortnightly. Most recently, Rad Index was updated on October 24, 2026 and MRI Plan on October 24, 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.*