Comparison

Centros NAILS vs REACT Study

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

Head to head

Manage medical research data

Free

🔧 Utilities

★ 4.04 ratingsView app →

About

Centros NAILS

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A través de nuestra aplicación ya tienes la función de reservar tu cita online.

About

REACT Study

This app supports an international research initiative focused on preventing cardiovascular diseases by detecting atherosclerosis early. Contribute to personalized detection and treatment strategies to improve global health outcomes.

Highlights

Supports international research initiative
Focuses on early atherosclerosis detection
Contributes to personalized treatment strategies
Aims to prevent cardiovascular diseases
Facilitates global health improvement

Features

Read full description

REACT (Early Cure of Atherosclerosis) is an innovative app designed to support an international research initiative aimed at preventing cardiovascular diseases through the early detection of atherosclerosis. About the study: REACT focuses on identifying early risk factors for atherosclerosis, long before severe symptoms appear. Your contribution helps us develop personalized detection and treatment strategies to improve global health. Download REACT and be part of the future of cardiovascular prevention.

Screenshots

Centros NAILS4 screens

REACT Study4 screens

Verdict

The call

The clearest difference is update cadence: REACT Study at every 3 weeks against Centros NAILS's every 14 months. REACT Study also leads on device support. On price, in-app purchases and iOS requirement 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

Centros NAILS ships an update every 14 months, REACT Study every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 7 level

Centros NAILS versus REACT Study: the parameters behind the verdict, then further details
Parameter	Centros NAILS	REACT Study
Price	Free	Free
Rating	—	4.0 (4 ratings) — better
Number of ratings	—	4 — better
Update frequency	Every 14 months	Every 3 weeks — better
Ads	—	No
In-app purchases	No	No
Monetization	—	Free
Devices	—	iPhone, iPad, iPod — better
Requires iOS	14.0 — better	15.6
Further details — not scored
Size	59 MB	34 MB
Age rating	4+	4+
Developer	Rosario Montoro	Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)

In-app purchases

None

Centros NAILS

No in-app purchases

None

REACT Study

No in-app purchases

Questions

Is Centros NAILS free?

Centros NAILS is free to download, with no in-app purchases.

Is REACT Study free?

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

Which is updated more often, Centros NAILS or REACT Study?

Centros NAILS ships an update every 14 months, and REACT Study every 3 weeks. Most recently, Centros NAILS was updated on November 3, 2026 and REACT Study on October 30, 2026.