GRAPPA App vs ORB Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GRAPPA App
This medical application aids in the assessment of patients with psoriatic arthritis and psoriasis. It provides tools to calculate disease severity scores and includes patient-completed questionnaires in multiple languages. Access to GRAPPA resources is also available.
- Psoriatic arthritis and psoriasis assessment
- Disease severity calculators (MDA, PASI, BSA)
- Patient-completed questionnaires (PsAID, PEST, HAQ)
- Multilingual questionnaire support
- Access to GRAPPA resources
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This app from GRAPPA (Group for Research and Assessment of Psoriasis and Psoriatic Arthritis) is designed to support the assessment of patients with psoriatic arthritis and psoriasis. It allows users to calculate a patient’s MDA and assess skin disease (using either PASI or BSA) through specially designed calculators. The app also includes PsAID, PEST and HAQ questionnaires which can be completed directly by patients in a range of languages and a selection of slides from the GRAPPA resources. Visit http://www.grappanetwork.org/ to find out more about GRAPPA.
ORB Calculator
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This calculator is designed to help doctors and other healthcare professionals to help you decide on whether to take drug treatment for osteoporosis, but you can use it yourself to assess the potential benefits of individual treatment in preventing fractures.
Screenshots
Verdict
The clearest difference is iOS requirement: ORB Calculator at 9.0 against GRAPPA App's 13.0. 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.
| Parameter | GRAPPA App | ORB Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 19 MB |
| Age rating | 17+ | 4+ |
| Developer | Group for Research and Assessment of Psoriasis and Psoriatic Arthritis | The University of Edinburgh |
In-app purchases
GRAPPA App
No in-app purchases
ORB Calculator
No in-app purchases
