# RED Study vs People Heart Study

The clearest difference is update cadence: People Heart Study at every 3 weeks against RED Study's every 14 months. 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.

RED Study ships an update every 14 months, People Heart Study every 3 weeks. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | RED Study | People Heart Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (3 ratings)](https://appshunter.io/ios/app/people-heart-study/id1591183594/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 7 MB | 49 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [ideact](https://appshunter.io/developer/822202897) | [Harvard University](https://appshunter.io/developer/382088726) |

## What reviewers say

### RED Study

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

**Features:** macOS Compatibility

**In-app purchases:** none


### People Heart Study

[App page](https://appshunter.io/ios/app/people-heart-study/id1591183594)

This app helps individuals assess their heart health by analyzing personal health data from their iPhone's Health app. It generates a comprehensive heart disease risk report, including scores, risk factors, and lifestyle recommendations, which can be shared with a doctor. The study aims to understand how digital access to health data can empower individuals in managing their cardiovascular well-being.

**Highlights:** Heart health assessment, Personal health data analysis, Heart disease risk report, Lifestyle change recommendations, Downloadable PDF report, Guideline-based recommendations

**In-app purchases:** none


## Frequently asked questions

### Is RED Study free?

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

### Is People Heart Study free?

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

### Do RED Study or People Heart Study have ads?

Neither RED Study nor People Heart Study shows ads.

### Which is updated more often, RED Study or People Heart Study?

RED Study ships an update every 14 months, and People Heart Study every 3 weeks. Most recently, RED Study was updated on October 4, 2026 and People Heart Study on October 17, 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.*