# CHADS vs SYNTAX Score 2020

The clearest difference is update cadence: SYNTAX Score 2020 at every 6 weeks against CHADS's every 3 months. CHADS's advantage is iOS requirement (6.0 vs 12.0). 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.

CHADS ships an update every 3 months, SYNTAX Score 2020 every 6 weeks. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CHADS | SYNTAX Score 2020 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/chads-vasc/id735358100/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 12 MB | 50 MB |
| Requires iOS | **6.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [DOCTOT](https://appshunter.io/developer/351335901) | [SAHAJANAND MEDICAL TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1444988653) |

## What reviewers say

### CHADS

[App page](https://appshunter.io/ios/app/chads-vasc/id735358100)

This medical app offers healthcare professionals a user-friendly tool to quickly assess patient stroke risk using the CHA2DS2-VASc scale. It features a wizard format for easy data input, automatic score generation, and patient result management.

**Highlights:** CHA2DS2-VASc assessment, Wizard format for patient data, Automatic score generation, Patient results management, Email generation of results, PIN protection

**Features:** macOS Compatibility

**In-app purchases:** none


### SYNTAX Score 2020

[App page](https://appshunter.io/ios/app/syntax-score-2020/id1529725847)

**In-app purchases:** none


## Frequently asked questions

### Is CHADS free?

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

### Is SYNTAX Score 2020 free?

SYNTAX Score 2020 is free to download, with no in-app purchases.

### Do CHADS or SYNTAX Score 2020 have ads?

Neither CHADS nor SYNTAX Score 2020 shows ads.

### Which is updated more often, CHADS or SYNTAX Score 2020?

CHADS ships an update every 3 months, and SYNTAX Score 2020 every 6 weeks. Most recently, CHADS was updated on October 16, 2026 and SYNTAX Score 2020 on October 5, 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.*