# DAS28/ACR vs ASAS App

The clearest difference is iOS requirement: DAS28/ACR at 12.2 against ASAS App's 15.6. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for DAS28/ACR against 5.0 for ASAS App. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

DAS28/ACR ships an update every 15 months, ASAS App every 20 months. The most recent releases landed on November 8, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | DAS28/ACR | ASAS App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/das28acr-eular-criteria/id443707029/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/asas-app/id650291528/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 15 months** | Every 20 months |
| Monetization | Free | Free |
| Size | 1 MB | 45 MB |
| Requires iOS | **12.2** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Keiji Matsui](https://appshunter.io/developer/365287272) | [Stichting Assessment of Spondyloarthritis international Society](https://appshunter.io/developer/650291731) |

## What reviewers say

### DAS28/ACR

[App page](https://appshunter.io/ios/app/das28acr-eular-criteria/id443707029)

This medical app calculates key assessment criteria for rheumatoid arthritis, including DAS28CRP, DAS28ESR, CDAI, SDAI, and ACR-EULAR classification. It provides essential tools for healthcare professionals to evaluate disease activity and treatment response.

**Highlights:** DAS28CRP calculation, DAS28ESR calculation, CDAI calculation, SDAI calculation, ACR-EULAR classification criteria

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ASAS App

[App page](https://appshunter.io/ios/app/asas-app/id650291528)

This medical app provides essential tools for assessing Ankylosing Spondylitis. It includes calculators for key disease activity scores and offers comprehensive information on diagnosis, classification, and treatment of spondyloarthritis.

**Highlights:** ASDAS calculator, BASDAI calculator, Spondyloarthritis classification, Diagnosis information, Treatment guidelines, ASAS Health Index

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DAS28/ACR free?

DAS28/ACR is free to download, with no in-app purchases.

### Is ASAS App free?

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

### Which has better reviews, DAS28/ACR or ASAS App?

DAS28/ACR and ASAS App are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do DAS28/ACR or ASAS App have ads?

Neither DAS28/ACR nor ASAS App shows ads.

### Which is updated more often, DAS28/ACR or ASAS App?

DAS28/ACR ships an update every 15 months, and ASAS App every 20 months. Most recently, DAS28/ACR was updated on November 8, 2026 and ASAS App on November 1, 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.*