# Radiology Toolbox Pro vs RED Study

The clearest difference is in-app purchases: RED Study at none against Radiology Toolbox Pro's 2. Radiology Toolbox Pro's advantage is update cadence (every 4 months vs every 14 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Radiology Toolbox Pro sells 2 in-app purchases, starting at $1.99 per month. RED Study asks for nothing beyond the download.

Radiology Toolbox Pro ships an update every 4 months, RED Study every 14 months. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Radiology Toolbox Pro | RED Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/radiology-toolbox-pro/id466281848/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 14 months |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 7 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Softcode Systems, Inc.](https://appshunter.io/developer/415176376) | [ideact](https://appshunter.io/developer/822202897) |

## What reviewers say

### Radiology Toolbox Pro

[App page](https://appshunter.io/ios/app/radiology-toolbox-pro/id466281848)

This medical reference app provides radiologists, technologists, and students with essential tools. It includes diagrams, calculators, and clinical decision support for various imaging modalities. An optional upgrade unlocks dozens of advanced diagnostic criteria and future updates.

**Highlights:** Radiology references and diagrams, Clinical decision support tools, Calculators for various modalities, CT, MR, US, NM, X-Ray criteria, Pro upgrade for advanced features, Regular updates with new tools

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $17.99 | per year |


### RED Study

[App page](https://appshunter.io/ios/app/red-study/id1575175669)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Radiology Toolbox Pro free?

Radiology Toolbox Pro is free to download, with in-app purchases available.

### Is RED Study free?

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

### Do Radiology Toolbox Pro or RED Study have ads?

Neither Radiology Toolbox Pro nor RED Study shows ads.

### Which is updated more often, Radiology Toolbox Pro or RED Study?

Radiology Toolbox Pro ships an update every 4 months, and RED Study every 14 months. Most recently, Radiology Toolbox Pro was updated on October 8, 2026 and RED Study on October 4, 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.*