Comparison

RheumaHelper vs КАРАТ

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RheumaHelper

This medical tool offers rheumatologists a comprehensive set of disease activity calculators and classification criteria for daily use. It provides verified content based on published research and is designed for easy reference on mobile devices.

Highlights
  • Disease activity calculators
  • Classification criteria
  • Verified medical content
  • Award-winning tool
  • Easy mobile reference
Features
Read full description

** An awarded mobile tool for rheumatologists ** RheumaHelper is a pocket rheumatology assistant. Classification criteria, disease activity calculators, and everyday clinical tools — always with you, easy to use, and ready when you need them. Designed for iOS 26 with Liquid Glass on iPhone and iPad. ** Verified content ** Reviewed by Prof. Matija Tomšič, M.D., Ph.D., Asst. Prof. Žiga Rotar, M.D., Ph.D. (rheumatologists at University Medical Centre Ljubljana, Slovenia), and Rok Ješe, M.D., Ph.D. (rheumatologist and medical advisor at Mediately). All calculators and criteria are based on referenced equations. References are available inside the app. ** Available tools ** More than 40 tools with fast search access. Classification criteria: • Adult Still's disease (Cush, Fautrel, Yamaguchi) • Antiphospholipid syndrome • Arthralgia suspicious for progression to RA (2016 EULAR) • Autoinflammatory recurrent fevers (clinical classification) • Axial spondyloarthritis • Behçet's Disease (ICBD) • Fibromyalgia (2016 ACR) • Gout (2014 Oxford; 2015 ACR-EULAR) • IgG4-related disease (2019 ACR/EULAR) • Idiopathic inflammatory myopathies (2017 ACR/EULAR) • Inflammatory Back Pain • Peripheral spondyloarthritis • Polymyalgia rheumatica • Primary Sjögren's syndrome (2016 ACR/EULAR) • Psoriatic arthritis (CASPAR) • Rheumatoid arthritis (2010 ACR/EULAR) • Systemic lupus erythematosus (ACR, SLICC, 2019 EULAR/ACR) • Systemic sclerosis (ACR/EULAR) • …and more Disease activity calculators: • ASDAS — Ankylosing spondylitis disease activity score • BASDAI — Bath ankylosing spondylitis disease activity index • BVAS — Birmingham vasculitis activity score (v3) • DAPSA, DAPSA28 • DAS28 • ESSDAI, ESSPRI • Five-Factor Score • PASI — Psoriasis area and severity index • SDAI / CDAI • SELENA-SLEDAI • VDI — Vasculitis damage index • …and more General tools: • QTc (Corrected QT Interval) • Creatinine Clearance (Cockcroft–Gault) • eGFR (CKD-EPI and MDRD) • …and more coming soon

About

КАРАТ

This medical reference app assists healthcare professionals in diagnostic searches and optimal therapy selection based on ICD-10 and clinical guidelines. It provides step-by-step guidance for treatment planning, including a full spectrum of drug therapies for various conditions.

Highlights
  • ICD-10 based diagnostic support
  • Comprehensive drug therapy algorithms
  • Step-by-step treatment planning
  • Based on clinical guidelines
  • Information system for rational therapy choice
Features
Read full description

Мобильное приложение «КАРАТ-ЭКСПЕРТ», создано на базе ранее успешно реализованного приложения «Карат». Основное его отличие состоит в том, что разработчики в этом приложении предложили пользователям решение, которое составлено на основании хорошо известной представителям медицинского сообщества МКБ-10. Кроме того алгоритмы лечения включают теперь весь спектр лекарственной терапии при различных заболеваниях. Как и прежде алгоритмы составлены на основании данных клинических рекомендаций, первоисточники которых указаны в каждом алгоритме. Алгоритмизированное приложение составлено по принципу пошагового подведения пользователя к решению поставленной задачи – оптимального диагностического поиска и/или выбору оптимальной терапии при установленном диагнозе и дополнительных критериях . Важно! «КАРАТ-ЭКСПЕРТ» является справочной информационной системой рационального выбора терапии, предназначенной ИСКЛЮЧИТЕЛЬНО для врачей. Если Вы не являетесь квалифицированным специалистом здравоохранения, убедительно просим Вас не устанавливать данное приложение и не пользоваться представленной системой.

Screenshots

RheumaHelper4 screens
КАРАТ4 screens

Verdict

The call

The clearest difference is update cadence: КАРАТ at every 8 days against RheumaHelper's every 2 months. КАРАТ also leads on monetization model (free vs ad-supported) and iOS requirement (12.0 vs 18.0). RheumaHelper's advantage is review sentiment (59% vs 35%). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

RheumaHelper ships an update every 2 months, КАРАТ every 8 days. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
RheumaHelper versus КАРАТ: the parameters behind the verdict, then further details
ParameterRheumaHelperКАРАТ
PriceFreeFree
Rating4.8 (130 ratings) — better—
Positive reviews58.6% of reviews — better35.0% of reviews
Number of ratings130 — better—
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.012.0 — better
Further details — not scored
Size20 MB32 MB
Age rating17+17+
DeveloperModra Jagoda, spletno oblikovanje in razvoj mobilnih aplikacij d.o.o.MEDKOM-PRO, OOO

Customer experience

RheumaHelper

All ratings129 ratings
Positive97.7%
Neutral1.6%
Negative0.8%
Written reviews29 reviews
Positive58.6%
Neutral20.7%
Negative20.7%

КАРАТ

Written reviews40 reviews
Positive35.0%
Neutral7.5%
Negative57.5%

In-app purchases

None

RheumaHelper

No in-app purchases

None

КАРАТ

No in-app purchases

Questions

Is RheumaHelper free?
RheumaHelper is free to download, with no in-app purchases.
Is КАРАТ free?
КАРАТ is free to download, with no in-app purchases.
Do RheumaHelper or КАРАТ have ads?
Neither RheumaHelper nor КАРАТ shows ads.
Which is updated more often, RheumaHelper or КАРАТ?
RheumaHelper ships an update every 2 months, and КАРАТ every 8 days. Most recently, RheumaHelper was updated on November 1, 2026 and КАРАТ on November 2, 2026.

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