Best Diagnosaurus Apps

249+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated August 2026

With an average user rating of 4.1★, the diagnosaurus category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.

Compare top Diagnosaurus Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Diagnosaurus® DDxDiagnosaurus® DDxFree4.8★ (2.5K)NoYesAug 2026
2Bates' Pocket GuideBates' Pocket GuideFree4.8★ (300)NoYesAug 2026
3MDCalc Medical CalculatorMDCalc Medical CalculatorFree4.9★ (52K)NoNoAug 2026
45 Minute Clinical Consult5 Minute Clinical ConsultFree4.8★ (3.1K)NoYesAug 2026
5MobileDDx™ Pocket DDx ToolMobileDDx™ Pocket DDx ToolFree4.4★ (19)YesYesAug 2026
6Psychiatric DisordersPsychiatric DisordersFree2.5★ (2)NoNoJul 2026
7Emergency CentralEmergency CentralFree4.8★ (55)NoYesAug 2026
8Guide to Diagnostic TestsGuide to Diagnostic TestsFree4.6★ (35)NoYesAug 2026

Top Picks for Diagnosaurus

Diagnosaurus® DDx#1

Diagnosaurus® DDx by Unbound Medicine, Inc.

Best-selling DDx app worldwide
Editor's Choice
🏥 Medical
4.8😐(2.5K ratings)
FreeIn-App Purchases
Diagnosaurus® DDx screenshot 1
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Diagnosaurus® DDx screenshot 5
Diagnosaurus® DDx screenshot 6

This medical reference tool assists healthcare professionals in performing differential diagnoses quickly and confidently. It offers a searchable database of over 1,000 diagnoses, cross-referenced for related conditions, and allows users to save favorite entries and make custom notes.

What We Love

  • 👍 User-friendly interface
  • 🚀 Quick access to differential diagnoses
  • 💡 Helpful for building differential diagnoses
  • 👍 Comprehensive coverage of conditions

Room to Improve

  • 🐛 Lack of in-depth information
  • 🐛 Incomplete differential diagnoses
  • 🐛 Lack of links to explain conditions
Bates' Pocket Guide#2

Bates' Pocket Guide by Unbound Medicine, Inc.

Physical Exam & History Taking
Strong Contender
🏥 Medical
4.8(300 ratings)
FreeIn-App Purchases
Bates' Pocket Guide screenshot 1
Bates' Pocket Guide screenshot 2
Bates' Pocket Guide screenshot 3
Bates' Pocket Guide screenshot 4
Bates' Pocket Guide screenshot 5

This app provides essential information for obtaining health histories and conducting physical exams. It features step-by-step techniques, updated images, and differential diagnoses for quick and accurate interpretation of findings. Ideal for students and professionals needing a fast reference.

MDCalc Medical Calculator#3

MDCalc Medical Calculator by MD Aware, LLC

Clinical Decision Support
Worth Considering
🏥 Medical
4.9😊(52K ratings)
Free
MDCalc Medical Calculator screenshot 1
MDCalc Medical Calculator screenshot 2
MDCalc Medical Calculator screenshot 3
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MDCalc Medical Calculator screenshot 6

This app provides over 900 evidence-based medical calculators, risk scores, and clinical tools for healthcare professionals. It offers offline functionality, expert insights, and CME tracking to support patient care at the bedside. Tools are developed and validated by board-certified physicians.

What We Love

  • ⭐ Excellent resource
  • 🔍 Helpful and accurate
  • 🔥 Essential for clinical practice
  • 🤖 Useful for medical students and residents

Room to Improve

  • 🐛 Crashes and bugs after updates
  • 🔒 Mandatory login/registration issues
  • 📱 Poor user experience on mobile devices

More Diagnosaurus apps to explore

4
5 Minute Clinical Consult
5 Minute Clinical Consult
5 Minute Clinical Consult
2026 Edition w/ Bonus Features
Free

This app provides quick access to diagnostic and treatment information for over 1,000 medical conditions. It includes bonus content like pediatric diseases and differential diagnoses, with offline access and advanced search capabilities.

Diagnose and treat 1,000+ medical conditionsOffline accessDifferential diagnosis tool
🏥 Medical
(3.1K)
subscription
5
MobileDDx™ Pocket DDx Tool
MobileDDx™ Pocket DDx Tool
MobileDDx™ Pocket DDx Tool
McGraw-Hill Diagnosaurus
Free

This medical reference tool provides over 1,000 differential diagnoses for medicine and surgery. It allows users to explore conditions by organ system, symptoms, or diseases, and includes 1-year online access. Powerful search technology enables quick information retrieval without an internet connection after initial download.

Over 1,000 differential diagnosesSign & Symptom indexDisease Index
🏥 Medical
(19)
free with in-app purchases
6
Psychiatric Disorders
Psychiatric Disorders
Psychiatric Disorders
from @Point of Care™
Free

This clinical decision support tool provides clinicians with curated, evidence-based medical content for psychiatric disorders. It uses AI to answer natural language questions, enabling faster and better patient care decisions.

AI-powered clinical decision supportEvidence-based psychiatric contentVoice-enabled natural language questions
🏥 Medical
(2)
free
7
Emergency Central
Emergency Central
Emergency Central
All-in-One Emergency Resource
Free

This comprehensive medical app provides emergency medicine professionals with instant access to disease information, diagnosis tools, and treatment protocols. It integrates drug guides, diagnostic test references, and a PubMed search to support clinical decision-making.

Disease and diagnosis informationStep-by-step treatment resourcesDrug dosing and interaction guide
🏥 Medical
(55)
free with in-app purchases
8
Guide to Diagnostic Tests
Guide to Diagnostic Tests
Guide to Diagnostic Tests
Evidence-based recommendations
Free

Access evidence-based information on over 450 diagnostic tests, including lab work, imaging, and therapeutic monitoring. This resource helps healthcare professionals quickly find answers to common questions about test selection, interpretation, and patient preparation.

450+ diagnostic testsEvidence-based recommendationsAlgorithms, tables, and charts
🏥 Medical
(35)
free with in-app purchases
9
Doximity
Doximity
Doximity
Clinical AI, Calling & News
Free

This app provides U.S. healthcare professionals with AI-powered clinical tools, secure communication, and news. It offers features like AI-assisted clinical question answering, time-saving administrative tools, patient calling, ambient note-taking, and secure faxing. It aims to simplify daily tasks and improve patient care.

AI-powered clinical question answeringHIPAA-compliant AI for administrative tasksSecure patient calling and messaging
🏥 Medical
(197K)
free
10
AMBOSS Medical Knowledge
AMBOSS Medical Knowledge
AMBOSS Medical Knowledge
For study & clinical decisions
Free

This app provides quick, reliable answers for medical professionals and students. It offers offline access to clinical information, diagnostic image interpretation, and patient care tools. Prepare for exams with high-yield content and integrate with flashcards for enhanced learning.

Offline clinical knowledge accessDiagnostic image interpretationPatient care tools (flowcharts, checklists, calculators)
🏥 Medical
(14K)
free with in-app purchases
11
Mughal Labs
Mughal Labs
Mughal Labs
Diagnostics & Research
Free
💪 Health & Fitness
(0)
12
DocMode | AIDE
DocMode | AIDE
DocMode | AIDE
by Docmode Health Technologies Private Limited
Free
🏥 Medical
(0)
13
Human Dx
Human Dx
Human Dx
Collective AI + expert answers
Free

This app integrates multiple leading AI models with human expert insights to provide comprehensive answers. It leverages collective intelligence to outperform individual experts and AI models for complex queries.

Integrates multiple top AIsCombines human expertiseCollective intelligence system
🔍 Reference
(591)
free
14
Pathology Dictionary Offline Free
Pathology Dictionary Offline Free
Pathology Dictionary Offline Free
by Andrew Putranto
Free
📚 Education
(0)
15
Medical Handguide
Medical Handguide
Medical Handguide
by Qualex Consulting Services, Inc
Free

This offline medical dictionary provides comprehensive information on diseases, symptoms, and treatments. It serves as a quick reference for individuals and healthcare professionals, offering details on medicines, diagnosis, and patient care.

Offline access to medical disorders and diseasesSymptom and treatment advisoryDrug information and adverse problems
🏥 Medical
(1)
free
16
MedDex
MedDex
MedDex
Fast ICD-10 Code Search
Free
🏥 Medical
(0)
17
DiagnoseThis
DiagnoseThis
DiagnoseThis
by Core DT Solutions, LLC
Free
📚 Education
(0)
18
MedScope (3b0da0)
MedScope (3b0da0)
MedScope (3b0da0)
Intelligent Medical Reference
Free
🔍 Reference
(0)
19
Healio Homeopathy
Healio Homeopathy
Healio Homeopathy
Analyze your symptoms and heal
Free

This app helps you identify symptoms and discover natural homeopathic remedies. It uses a detailed symptom analysis to suggest suitable treatments based on established homeopathic principles. Consult a healthcare professional for medical advice.

Symptom analysis toolHomeopathic remedy suggestionsFlat repertorization method
🏥 Medical
(1)
free with in-app purchases
20
Common Differential Diagnosis
Common Differential Diagnosis
Common Differential Diagnosis
by Mohammed Musa
Free

This app offers medical professionals a quick reference for common symptoms and their potential differential diagnoses. It covers a wide range of conditions across various medical specialties, allowing users to explore symptoms or diseases.

Symptom-to-disease mappingDisease-to-symptom mappingCovers ~180 conditions
🏥 Medical
(2)
free

FAQ about Diagnosaurus

What are the best diagnosaurus apps for iPhone?
Diagnosaurus® DDx tops our diagnosaurus apps ranking as of August 2026, with a 4.8-star average from 2.5K App Store ratings, and it's free to download.
Yes — 20 of the top diagnosaurus apps we rank are free to download, including Diagnosaurus® DDx and Bates' Pocket Guide.
Diagnosaurus® DDx has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ diagnosaurus apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Diagnosaurus DDx is a quick-reference tool designed for healthcare professionals to assist with differential diagnosis. It provides access to over 1,000 diagnoses, organized by organ system, symptom, or disease, enabling users to quickly explore potential conditions.
Key features include a database of over 1,000 differential diagnoses, the ability to search by organ system, symptom, or disease, and a 'See Related DDx' function to explore alternative diagnoses. Users can also highlight entries, make custom notes, and save important entries to a 'Favorites' list.

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