# CHADS vs CV Risk Estimation

The clearest difference is update cadence: CHADS at weekly against CV Risk Estimation's monthly. CHADS also leads on rating (5.0 vs 4.8) and iOS requirement (10.1 vs 15.0). On price, ratings volume, 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.

CHADS holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

CHADS ships an update weekly, CV Risk Estimation monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CHADS | CV Risk Estimation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chads-vasc-calculator/id1099319302/reviews)** | [4.8 (4 ratings)](https://appshunter.io/ios/app/cv-risk-estimation/id1630193162/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | Free |
| Size | 21 MB | 2 MB |
| Requires iOS | **10.1** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Brad McAnalley](https://appshunter.io/developer/1088438425) | [United Health Services, Inc.](https://appshunter.io/developer/1451318916) |

## What reviewers say

### CHADS

[App page](https://appshunter.io/ios/app/chads-vasc-calculator/id1099319302)

This medical app calculates the CHA2DS2-VASc score for patients with atrial fibrillation. It provides the relative risk of thromboembolism based on the calculated score, offering an improvement over older scoring methods.

**Highlights:** CHA2DS2-VASc score calculation, Thromboembolism risk assessment, Improvement over CHADS2 score, Simple user interface

**Features:** macOS Compatibility

**In-app purchases:** none


### CV Risk Estimation

[App page](https://appshunter.io/ios/app/cv-risk-estimation/id1630193162)

This app provides clinicians with three essential 10-year cardiovascular event risk calculators for primary prevention. It helps estimate risk based on patient data and assess the potential impact of lifestyle changes.

**Highlights:** Framingham 2008 risk calculator, ASCVD 2013 risk calculator, ASCVD 2018 risk calculator, Cardiovascular disease primary prevention tool, Risk impact assessment for lifestyle changes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CHADS free?

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

### Is CV Risk Estimation free?

CV Risk Estimation is free to download, with no in-app purchases.

### Which has better reviews, CHADS or CV Risk Estimation?

CHADS is rated higher. CHADS averages 5.0 out of 5 from 2 ratings, while CV Risk Estimation averages 4.8 from 4 ratings.

### Do CHADS or CV Risk Estimation have ads?

Neither CHADS nor CV Risk Estimation shows ads.

### Which is updated more often, CHADS or CV Risk Estimation?

CHADS ships an update weekly, and CV Risk Estimation monthly. Most recently, CHADS was updated on November 2, 2026 and CV Risk Estimation on November 3, 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.*