# ASAS App vs Rheumatools John Libbey E.

The clearest difference is update cadence: Rheumatools John Libbey E. at every 8 months against ASAS App's every 20 months. ASAS App's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

ASAS App ships an update every 20 months, Rheumatools John Libbey E. every 8 months. The most recent releases landed on September 15, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | ASAS App | Rheumatools John Libbey E. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/asas-app/id650291528/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 8 months** |
| Monetization | Free | — |
| Size | 45 MB | 61 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Stichting Assessment of Spondyloarthritis international Society](https://appshunter.io/developer/650291731) | [John Libbey Eurotext](https://appshunter.io/developer/503890972) |

## What reviewers say

### 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


### Rheumatools John Libbey E.

[App page](https://appshunter.io/ios/app/rheumatools-john-libbey-e/id1271348064)

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

**In-app purchases:** none


## Frequently asked questions

### Is ASAS App free?

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

### Is Rheumatools John Libbey E. free?

Rheumatools John Libbey E. is free to download, with no in-app purchases.

### Do ASAS App or Rheumatools John Libbey E. have ads?

Neither ASAS App nor Rheumatools John Libbey E. shows ads.

### Which is updated more often, ASAS App or Rheumatools John Libbey E.?

ASAS App ships an update every 20 months, and Rheumatools John Libbey E. every 8 months. Most recently, ASAS App was updated on September 15, 2026 and Rheumatools John Libbey E. on September 12, 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.*