# Jackson Heart Study vs Icon DR DX

The clearest difference is iOS requirement: Jackson Heart Study at 12.1 against Icon DR DX's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Jackson Heart Study ships an update every 11 months, Icon DR DX every 13 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Jackson Heart Study | Icon DR DX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 13 months |
| Size | 29 MB | 34 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [University of Mississippi Medical Center](https://appshunter.io/developer/940152854) | [Icon Holdings Services Pty Ltd](https://appshunter.io/developer/1637359442) |

## What reviewers say

### Jackson Heart Study

[App page](https://appshunter.io/ios/app/jackson-heart-study/id1539841039)

**Features:** macOS Compatibility

**In-app purchases:** none


### Icon DR DX

[App page](https://appshunter.io/ios/app/icon-dr-dx/id6526474982)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jackson Heart Study free?

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

### Is Icon DR DX free?

Icon DR DX is free to download, with no in-app purchases.

### Do Jackson Heart Study or Icon DR DX have ads?

Neither Jackson Heart Study nor Icon DR DX shows ads.

### Which is updated more often, Jackson Heart Study or Icon DR DX?

Jackson Heart Study ships an update every 11 months, and Icon DR DX every 13 months. Most recently, Jackson Heart Study was updated on November 7, 2026 and Icon DR DX on October 30, 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.*