Comparison

RED Study vs People Heart Study

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RED Study

Features
Read full description

This app is designed for the RED study, initiated by OCON to evaluate blood loss during this medical research study. This app can only be used on invitation and participation of the RED study.

About

People Heart Study

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
Read full description

We are interested in understanding how data can empower individuals to evaluate their health. In particular, we are studying how individuals can use their personal health data to assess their heart health. Why heart health? Because heart disease remains the leading cause of death in the United States, and evidence suggests that appropriate lifestyle and medical management can prevent it. Our study will help us understand whether individuals gaining digital access to their lab tests and medical history from their care providers results in enough data to produce heart health recommendations like this that adhere to current American College of Cardiology / American Heart Association guidelines for primary prevention of heart disease. Who can participate? -------------------- Individuals meeting the following criteria are eligible to enroll in this study - Age 40–75 years - Residents of the United States - Willing to link and share health record from iPhone’s Health app - Have NO history of heart attack, stroke or other heart-related illness What to expect --------------- Once all steps are completed, the app will create a heart disease risk report, including in the form of a downloadable PDF file, that can be shared with your doctor. This report will include information on your heart disease risk scores, major and minor risk factors, and suggested lifestyle changes. It may also include a recommended medication as appropriate. Discuss with your doctor ------------------------- The PDF report will contain guideline-based recommendations, including whether or not you may require interventions. Discussing this with your doctor can help you make better decisions. Please note ----------- While the recommendations may be based on a mix of your health data from your Electronic Health Records (EHR) and your self-reported medical history, they do not replace clinical judgment and are thus for research purposes only. Consulting your doctor with the report provided by the study may lead to a more informed, shared decision making process.

Screenshots

RED Study4 screens
People Heart Study4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard1 real difference · 8 level
RED Study versus People Heart Study: the parameters behind the verdict, then further details
ParameterRED StudyPeople Heart Study
PriceFreeFree
Rating—4.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 14 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size7 MB49 MB
Age rating17+17+
DeveloperideactHarvard University

In-app purchases

None

RED Study

No in-app purchases

None

People Heart Study

No in-app purchases

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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