# Professional Data Portfolio vs ROC curve

The clearest difference is update cadence: Professional Data Portfolio at every 14 months against ROC curve's every 29 months. ROC curve's advantage is iOS requirement (12.1 vs 15.0). 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.

Professional Data Portfolio ships an update every 14 months, ROC curve every 29 months. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Professional Data Portfolio | ROC curve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/roc-curve/id1225010309/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 29 months |
| Monetization | — | Free |
| Size | 26 MB | 8 MB |
| Requires iOS | 15.0 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [American College of Cardiology](https://appshunter.io/developer/502174543) | [Keiji Matsui](https://appshunter.io/developer/365287272) |

## What reviewers say

### Professional Data Portfolio

[App page](https://appshunter.io/ios/app/professional-data-portfolio/id1176593489)

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

**In-app purchases:** none


### ROC curve

[App page](https://appshunter.io/ios/app/roc-curve/id1225010309)

This medical application simplifies the creation of Receiver Operating Characteristic (ROC) curves. Users input patient and control data, then generate the curve with a single button press.

**Highlights:** ROC curve generation, Patient data input, Control data input, One-click ROC button

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

**In-app purchases:** none


## Frequently asked questions

### Is Professional Data Portfolio free?

Professional Data Portfolio is free to download, with no in-app purchases.

### Is ROC curve free?

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

### Do Professional Data Portfolio or ROC curve have ads?

Neither Professional Data Portfolio nor ROC curve shows ads.

### Which is updated more often, Professional Data Portfolio or ROC curve?

Professional Data Portfolio ships an update every 14 months, and ROC curve every 29 months. Most recently, Professional Data Portfolio was updated on November 2, 2026 and ROC curve on November 8, 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.*