ASAS App vs RAUSSA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ASAS App
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.
- ASDAS calculator
- BASDAI calculator
- Spondyloarthritis classification
- Diagnosis information
- Treatment guidelines
- ASAS Health Index
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The ASAS app offers calculators for the Ankylosing Spondylitis Disease Activity Score (ASDAS), the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), as well as information on classification, diagnosis, outcome assessment, and treatment of spondyloarthritis. ASAS Health Index
RAUSSA
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Ultrasound detected synovitis is a powerful imaging tool used worldwide that helps diagnose, monitor and treat patients with rheumatoid arthritis . RAUSSA application has been developed to help you score joint and tendon ultrasound grey scale and Doppler detected synovitis while performing your ultrasound examination. RAUSSA is made-up of almost 400 images from patients with rheumatoid arthritis. Takes no more than 2 minutes to learn! In every area you can look at a representative anatomic specimen image, up to 4 different US images with the same grey scale or Doppler mode score. , Dr. J. Uson MD PhD , Dr. I. Möller MD PhD and Dr. E. Naredo MD PhD, experts in rheumatologic ultrasound have obtained the images in this app. The ultrasound definitions and semi-quantitative scoring method used in this app. are those driven and reported by OMERACT (Outcome Measures in Rheumatology in Clinical Trials) validated for diagnoses and monitoring inflammatory activity in patients with rheumatoid arthritis (Bruyn GA, Naredo E, Iagnocco A. J Rheumatol 2015;42 (11):2172-6).
Screenshots
Verdict
The clearest difference is update cadence: RAUSSA at every 4 days against ASAS App's every 20 months. RAUSSA also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support 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
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, RAUSSA every 4 days. The most recent releases landed on October 17, 2026 and September 20, 2026 respectively.
| Parameter | ASAS App | RAUSSA |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 20 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 29 MB |
| Age rating | 17+ | 17+ |
| Developer | Stichting Assessment of Spondyloarthritis international Society | Dialogo Tecnologico S.L.L. |
In-app purchases
ASAS App
No in-app purchases
RAUSSA
No in-app purchases








