DAS Calculator vs Rheumatologic Diseases
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DAS Calculator
This medical tool helps evaluate and track rheumatoid arthritis disease activity using validated formulas. It calculates scores based on joint counts, CRP, and general health, providing an estimate of disease progression for clinicians and researchers.
- Rheumatoid arthritis disease activity scoring
- Track disease activity over time
- Validated formulas for DAS28-CRP
- Includes DAS/DAS28 converter
- Unlock additional formulas with Pro version
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DAS, or "Disease Activity Score," is a measure of the activity of rheumatoid arthritis. Based on the work of the Department of Rheumatology at the University Medical Centre at Nigmegen (Netherlands), a validated tool (formula) was developed to evaluate and track Rheumatoid Arthritis disease activity. By measuring the tender and swollen joint counts (TJC & SJC respectively), CRP (c-reactive protein) and General Health, the DAS 28-4 gives an estimate of disease activity, while the DAS 28-3 uses just the TJC, SJC & CRP. Clinicians, rheumatologists in training, educators and researchers use this tool everyday and now you can have it readily available on your Apple mobile device. The following formulas are free for you to try. • DAS28-CRP • DAS28-CRP (3 Variable) • DAS/DAS28 Converter You may use these forever and never be nagged. There are no ads. Enjoy! If you like what you see, upgrade to the "Pro" version via one-time in-app purchase. This will unlock all remaining formulas, including: • DAS28 • DAS28 (3 Variable) • DAS-CRP • DAS-CRP (3 Variable) • Original DAS • Original DAS (3 Variable) • CDAI • SDAI • Cumulative and Weighed RAPID3®
Rheumatologic Diseases
This clinical decision support tool helps rheumatologists access evidence-based medical content and manage patient data. It features voice-activated search, case studies, and patient education resources to improve care at the point of need.
- Evidence-based medical content
- Voice-activated search with Watson
- Patient data tracking
- Case studies and videos
- Continuing medical education credit
- Patient education resources
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Rheumatologic Diseases @Point of Care™ (PoC) provides a streamlined clinical decision support tool for clinicians who specialize in rheumatologic diseases including: Rheumatoid Arthritis, Psoriatic Arthritis, Ankylosing Spondylitis and Juvenile Idiopathic Arthritis to obtain content when it is needed, keep track of their patients—enabling better decisions, better outcomes, and better care. Featuring Ask With Watson (@sk), clinicians use @Point of Care™ Clinician Suite apps to easily access curated, evidence-based, and disease-specific medical content. Clinicians navigate content by asking voice-enabled natural language questions. The Ask With Watson, confidence-rated answers happen more quickly to efficiently incorporate best treatment options and decisions are made faster to improve patient outcomes at the point of care. Each @Point of Care™ Clinician Suite app is designed to: • Support discovery and practice change • Provide relevant, evidence-based disease-specific medical content • Improve patient outcomes at the point of care Features: • Continually updated content • Topics in diagnosis, treatment, and care management developed with expert physician authors • Case studies, videos, and interviews • Access to actionable patient-recorded data • Detailed reference list with access to original sources • Continuing medical education credit (CME/CE) • Surveys and peer polling • Patient education resources to share with patients • Receive detailed information regarding your patients' health such as: Medications and treatments; Symptoms and side effects; Charts that record test results, medication adherence, and more • Voice-activate commands for Watson, Patient Access and Clinical resources • Read-aloud feature for hands-free listening to medical texts • App Prescriber lets you prescribe one of our many patient apps to your patients
Screenshots
Verdict
The clearest difference is rating: DAS Calculator at 5.0 against Rheumatologic Diseases's 1.0. Rheumatologic Diseases's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 4 months). On price, ratings volume, ads 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. DAS Calculator sells 1 one-off in-app purchase. Rheumatologic Diseases asks for nothing beyond the download.
DAS Calculator holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
DAS Calculator ships an update every 4 months, Rheumatologic Diseases every 5 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | DAS Calculator | Rheumatologic Diseases |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 55.6% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 1 MB | 19 MB |
| Age rating | 4+ | 12+ |
| Developer | Greg Fiumara | @Point of Care |
Customer experience
DAS Calculator
Rheumatologic Diseases
In-app purchases
DAS Calculator
- Unlock All Calculators$1.99
Rheumatologic Diseases
No in-app purchases
Questions
Is DAS Calculator free?
Is Rheumatologic Diseases free?
Which has better reviews, DAS Calculator or Rheumatologic Diseases?
Do DAS Calculator or Rheumatologic Diseases have ads?
Which is updated more often, DAS Calculator or Rheumatologic Diseases?
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