Eponyms icon
Eponyms (for students) icon
MedCalX icon

Ossus

For medical professionals, nursing students, and specialists in high-acuity settings like the ICU and ER requiring quick-access clinical data.

Known forEponyms
3apps4.3(70)Medical

Snapshot

Who is Ossus?

Providing specialized medical reference and clinical calculation tools for healthcare professionals and students.

Target audience

Medical professionalsNursing studentsSpecialists in high-acuity settings like the ICU

Top rival

HVALABS

Other rivals

Portfolio

Free 3
3
apps
Medical3

Last updated

Eponyms

v3.13.1

8mo ago

Steady

Publisher DNA

What defines Ossus?

Publisher DNA

Primary focus

Medical reference and clinical calculation tools

Scale

indie

Target audience

Medical professionals, nursing students, and specialists in high-acuity settings like the ICU and ER requiring quick-access clinical data.

Origin

The publisher maintains tools with over 25 years of development history in the medical calculation space.

Signature Patterns

  • •Focus on specialized medical reference databases and clinical formulas
  • •Freemium monetization model utilizing 'try before you buy' sample content
  • •Cross-disciplinary coverage spanning over 20 health profession areas
  • •Utility-driven interface designed for rapid search and categorization in clinical settings
Steady

Portfolio momentum

Maintained a steady cadence with 2 releases across 3 apps in the last 6 months, with 66% of the portfolio currently active.

Last release 82d agoActive apps 2Abandoned 1

Portfolio

What does Ossus ship?

Apps

3 apps analysed

Eponyms icon
Eponyms

1700 Common and obscure medical eponyms with descriptions & medical terminology

4.6(33)

Rivals

Who does Ossus compete with?

The rivals identified

Nemeses(2)

AMBOSS

known forAMBOSS Medical Knowledge

2 apps4.9Medical

Both apps target medical students and clinicians seeking quick reference tools, though AMBOSS provides a broader clinical knowledge base compared to the specialized eponym focus of Medical Eponyms.

Medicon Apps

known forCliniCalc Medical Calculator

1 app4.8Medical

Both apps target medical professionals with clinical calculation libraries, creating direct competition for daily diagnostic utility in high-acuity settings.

Contenders(14)

HVALABS

known forEasy Medical Calculator

2 apps0.0Medical

Both applications target medical professionals with a library of over 300 clinical formulas, creating direct competition for bedside decision-support utility.

Skyscape Medpresso

known forRadiology Review Manual

3 apps4.3Medical

Radiology Review Manual serves as a board exam preparation manual for radiologists, acting as a high-authority reference.

Atmosphere Apps

known forDavis Drug Guide For Nurses

1 app4.8Medical

Both apps target medical and nursing students as essential clinical reference tools, competing for limited screen time during daily practice.

David Sanchez Arroyo

known forMedical Calculator App

1 app0.0Medical

Both apps target healthcare professionals with medical formula libraries, creating direct competition for clinical decision-making utility.

Dr. Jamie Alnasir, Ph.D

known forMedical Calculator

1 app0.0Medical

Both apps target medical professionals with clinical calculation tools, creating direct competition for the same clinical workflow utility.

Epocrates

known forepocrates: Drug Info & Pill ID

1 app2.7Medical

Both apps target medical students and healthcare professionals, competing for limited screen time in clinical settings where quick reference tools are essential.

Evan Schoenberg

known forMediMath Medical Calculator

1 app4.5Medical

Both apps target medical professionals with clinical calculators, creating direct competition for the same clinical workflow utility.

Farlex

known forMedical Dictionary by Farlex

3 apps4.7Medical

Medical Dictionary by Farlex competes for the same medical student and healthcare provider audience by offering a broader medical terminology reference that includes the specific eponyms covered by Medical Eponyms.

Hamidreza Hosseini

known forMehrsys Medical Calculator

1 app4.9Medical

Both applications target medical professionals with clinical calculators, creating direct competition for decision-support utility in high-acuity clinical settings.

Hipposoft

known forLab Values Medical Reference

1 app3.7Medical

Both apps target healthcare professionals requiring clinical reference tools, with MedCalX focusing on complex calculations and Lab Values+ providing specialized lab reference ranges.

Shinnosuke Takano

known forMediCalc - Clinical Tools

1 app0.0Medical

Both applications target medical professionals with clinical calculation tools, creating direct competition for utility on a clinician's device.

TY MICHEAL,WILLIAMS DUNSE

known forMedAtlas: Medical Reference

1 app5.0Medical

MedAtlas competes for the same clinical decision support audience by offering a library of 250+ calculators and 200+ infection regimens that directly overlap with the core utility of MedCalX.

Unbound Medicine

known for5 Minute Clinical Consult

6 apps4.9Medical

Both apps target medical students and healthcare professionals, competing for the same limited time and attention during clinical practice.

Web of Medicine

known forScores - Medical Calculator

1 appMedical

Both apps target medical professionals with clinical calculators and decision rules. Scores competes directly by offering a larger library of 780+ formulas compared to the 300+ formulas in MedCalX.

Same space(19)

3D4Medical from Elsevier

known forComplete Anatomy for iPhone

1 app3.4Medical

Complete Anatomy provides clinical-grade 3D dissection tools for the same professional and student demographic that relies on Eponyms.

Ahmad Al Hariri

known forOrthopedic Clinical Scores

1 app0.0Medical

This app functions as a specialized clinical reference tool for orthopedic professionals, mirroring the core utility of MedCalX but with a focused scope.

CaryRx

known forClair - AI Clinical Reference

1 appMedical

Clair acts as an AI-powered clinical reference tool, providing faster access to medical guidelines than traditional reference apps.

EBSCO Publishing

known forDynaMed

1 app4.9Medical

DynaMed provides evidence-based clinical decision support for professionals, shifting from terminology to active clinical guidance.

iPatientCare

known foriPatientCare - Calculator

1 app5.0Medical

This app targets the same clinician user base as MedCalX by providing point-of-care tools for internal medicine and obstetrics.

Jellyfish Connect

known forMental Health Nursing Journal

1 app0.0Medical

Mental Health Nursing Journal provides specialized professional content for mental health nurses, distinct from general eponym reference.

Johns Hopkins Mobile medicine

known forSmall Intestinal Pathology

1 app0.0Medical

Small Intestinal Pathology provides a specialized pathology atlas for gastrointestinal professionals, serving as a niche reference tool.

Knowledge Diffusion

known forOsmosis Nursing Videos & Notes

2 apps4.9Medical

Osmosis targets nursing students with high-yield video content, serving as a visual-first study alternative to text-based reference tools.

Learn-Train

known forCCMC-CCM Prep 2024

1 app1.0Medical

CCMC-CCM Prep 2024 provides exam preparation for case managers, serving a specific professional certification audience.

MD Aware

known forMDCalc Medical Calculator

1 app4.9Medical

This tool serves the same clinical decision support audience as MedCalX, but provides a larger library of 900 calculators.

MediSearch

known forMediSearch AI

1 app3.8Medical

MediSearch AI functions as a research-based search tool for health information, contrasting with the specific eponym focus of Eponyms.

Mikael Cohen

known forNIH Score & stroke tools

1 app4.5Medical

This tool provides specialized clinical management resources for stroke patients, serving as a focused utility for neurologists and emergency physicians.

Neuraxis AB

known forNeuro Assistant

1 app4.5Medical

Neuro Assistant provides specialized neurology reference data, serving as a portable clinical tool for a specific sub-specialty.

palmER Worldwide

known forpalmEM AI: EM Quick Reference

1 app4.3Medical

palmEM AI provides emergency medicine guidance, acting as a bedside reference tool that complements terminology focus.

TazKai

known forNURSING.com | NCLEX & Nursing

1 app4.5Medical

NURSING.com provides exam-focused study tools for nursing students, acting as an active learning companion rather than a reference dictionary.

Tobias Werner

known foriauscult

1 app0.0Medical

iauscult focuses on auscultation training for medical professionals, providing a specialized skill-based learning tool.

Usatine & Erickson Media

known forAnatomic Pathology Flashcards

1 app5.0Medical

Anatomic Pathology Flashcards provides visual study aids for pathology residents, focusing on board exam preparation.

Visible Body Apps

known forHuman Anatomy Atlas 2026

1 app4.8Medical

Human Anatomy Atlas 2026 offers high-fidelity 3D anatomical visualization, serving as a visual reference for the same student audience.

WebMD

known forCalculate by QxMD

1 app4.5Medical

Calculate by QxMD offers clinical calculators for medical professionals, serving as a point-of-care utility.

New entrants(1)

ZIma Logistics

known forVetMed Pro: Clinical Reference

1 app5.0Medical

VetMed Pro provides a clinical reference for veterinary medicine, serving a different professional demographic than human-health tools.

The Analyst's Read

The bottom line on Ossus

Bottom line

Ossus GmbH is a specialized indie publisher focused on the medical utility niche. Their positioning relies on the depth of their clinical databases and a long development history, serving a professional audience that prioritizes reliable reference data over modern UI trends.

Frequently asked questions

How many apps does Ossus publish?
Ossus has 3 apps tracked by Marlvel, primarily in the Medical category.
What kind of apps does Ossus make?
Ossus's portfolio is concentrated in Medical, with an average rating of 4.3/5 across rated apps.
What is Ossus's top app?
By review volume across the portfolio, Eponyms is Ossus's best-known app tracked by Marlvel.

What fed this analysis

Apps analyzed:
3
With full intel:
0
With overview:
3
Website scraped:
yes
Social presence:
yes

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Ossus, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Ossus intelligence.” Updated 2026-04-24. https://marlvel.ai/publishers/ossus-gmbh

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Data licensed under CC-BY-NC 4.0