1. Home
  2. Topics
  3. Differential Diagnosis

Best Differential Diagnosis Apps

249+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated August 2026

The best differential diagnosis apps on iPhone average 4.5★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Differential Diagnosis Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Diagnosaurus® DDxDiagnosaurus® DDxFree4.8★ (2.5K)NoYesAug 2026
2Differential Diagnosis | DDxDifferential Diagnosis | DDxFree—NoYesAug 2026
3DSM-5-TR® Diagnosis HandbookDSM-5-TR® Diagnosis HandbookFree4.6★ (1.5K)NoYesAug 2026
4DDx: Differential DiagnosisDDx: Differential DiagnosisFree—NoYesAug 2026
5Common Differential DiagnosisCommon Differential DiagnosisFree5.0★ (2)NoNoMay 2026
6Evidence-Based Diagnosis, 3/EEvidence-Based Diagnosis, 3/E$54.99—NoNoMay 2026
7X-Ray Differential DiagnosisX-Ray Differential DiagnosisFree5.0★ (2)NoNoMay 2026
8Symptom to Diagnosis EB GuideSymptom to Diagnosis EB GuideFree4.5★ (30)YesYesJul 2026

Top Picks for Differential Diagnosis

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
Diagnosaurus® DDx screenshot 2
Diagnosaurus® DDx screenshot 3
Diagnosaurus® DDx screenshot 4
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
DSM-5-TR® Diagnosis Handbook#3

DSM-5-TR® Diagnosis Handbook by Unbound Medicine, Inc.

Differential DDx Text Revision
Worth Considering
🏥 Medical
4.6😞(1.5K ratings)
FreeIn-App Purchases
#89in Medical
DSM-5-TR® Diagnosis Handbook screenshot 1
DSM-5-TR® Diagnosis Handbook screenshot 2
DSM-5-TR® Diagnosis Handbook screenshot 3
DSM-5-TR® Diagnosis Handbook screenshot 4
DSM-5-TR® Diagnosis Handbook screenshot 5
DSM-5-TR® Diagnosis Handbook screenshot 6

This app assists clinicians in making accurate psychiatric diagnoses using the latest DSM-5-TR® classifications. It features interactive decision trees and algorithms to guide users through a 6-step diagnostic process, offering differential diagnoses and detailed condition entries.

What We Love

  • 👍 Easy to use
  • 🚀 Quick lookup
  • 💡 Helpful decision trees
  • 🙌 Great app for therapists

Room to Improve

  • 🐛 Spelling errors
  • ⚠️ Lacks full diagnostic criteria
  • 💰 Overpriced for the content

More Differential Diagnosis apps to explore

4
DDx: Differential Diagnosis
DDx: Differential Diagnosis
DDx: Differential Diagnosis
Symptom-to-diagnosis reference
Free
🏥 Medical
(0)
5
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
6
Evidence-Based Diagnosis, 3/E
Evidence-Based Diagnosis, 3/E
Evidence-Based Diagnosis, 3/E
+ smart search suggestions
$54.99
🏥 Medical
(0)
7
X-Ray Differential Diagnosis
X-Ray Differential Diagnosis
X-Ray Differential Diagnosis
by Mohammed Musa
Free

This app offers a comprehensive list of potential causes for radiological findings encountered in daily medical practice. It covers various imaging types and is designed for educational use by healthcare professionals and students. The app works offline and provides differential diagnoses for nearly 140 radiological findings.

Differential diagnosis for radiological findingsCovers chest, cardiac, GI, urinary, and musculoskeletal imagingInformation on ~140 radiological findings
🏥 Medical
(2)
free
8
Symptom to Diagnosis EB Guide
Symptom to Diagnosis EB Guide
Symptom to Diagnosis EB Guide
Evidence Based Medicine + DDx
Free

This medical app uses a case-based approach to teach internal medicine diagnosis. It guides users through evaluating, diagnosing, and treating patients based on clinical complaints, with updated research and new diagnostic tools.

Case-based learningEvidence-based diagnosisDifferential diagnosis tables
🏥 Medical
(30)
free with in-app purchases
9
Differential Diagnosis Guide
Differential Diagnosis Guide
Differential Diagnosis Guide
Thoracic Radiology
Free

This app helps medical professionals and students review differential diagnoses for chest CT findings. It offers a powerful search tool and curated lists to explore diseases and their common imaging presentations, complete with over 100 CT images.

Review differential diagnoses for chest CT findingsDiscover common CT imaging presentationsSearch hundreds of diseases and imaging findings
🏥 Medical
(22)
free
10
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
11
Prognosis: Your Diagnosis
Prognosis: Your Diagnosis
Prognosis: Your Diagnosis
Improve your diagnosis skills
Free

Enhance your diagnostic and management skills with interactive clinical cases. Access facts and explanations to understand the rationale behind diagnoses and treatments. New cases are added weekly, reflecting current medical trends.

Interactive clinical casesDiagnostic and management rationaleSuccinct explanations
🏥 Medical
(2.9K)
ad-supported
12
VroomScan - Engine Diagnosis
VroomScan - Engine Diagnosis
VroomScan - Engine Diagnosis
Car, Bike & Vehicle AI Scanner
Free
🔧 Utilities
(0)
13
UpToDate
UpToDate
UpToDate
by UpToDate, Inc.
Free

This clinical decision support tool provides healthcare professionals with evidence-based guidance to improve patient care. It features AI-powered conversational answers, continuously updated medical content, and tools for drug reference, calculations, and patient education.

Expert AI conversational guidanceGold standard clinical contentPractice-changing updates
🏥 Medical
(577)
subscription
14
MedAnalysis Pro
MedAnalysis Pro
MedAnalysis Pro
Multi-AI
Free

Access powerful AI models for medical insights and research. This tool offers simultaneous analysis from multiple AIs, secure data handling, and advanced features like debate mode and image analysis.

Access 7+ leading AI modelsSimultaneous AI analysis (Super Analysis™)End-to-end encrypted data
🏥 Medical
(2)
free with in-app purchases
15
GP Diagnosis
GP Diagnosis
GP Diagnosis
The Medical Diagnosis App
Free
🏥 Medical
(0)
16
Neurological Differential Dx
Neurological Differential Dx
Neurological Differential Dx
Prioritized approach
Free

This app offers a prioritized approach to neurological differential diagnoses for healthcare professionals. It helps identify common and critical conditions quickly, aiding in confident decision-making at the point of care. An in-app purchase unlocks all content after a free trial with sample material.

Prioritized differential diagnosis listsHighlights common and critical conditionsDistinguishes specific diagnoses
🏥 Medical
(1)
free with in-app purchases
17
Unmasked: Adult Autism & ADHD
Unmasked: Adult Autism & ADHD
Unmasked: Adult Autism & ADHD
Adult Self-Discovery & ADHD
Free

Explore your neurodivergent traits without clinical jargon or shame. This app offers validated self-discovery tools and AI-powered reflections to help you understand autism and ADHD. Track energy, masking, and build a sensory profile.

Validated research questionnairesAI-powered interpretationSensory profile builder
💪 Health & Fitness
(1)
freemium
18
DermGPT
DermGPT
DermGPT
AI Dermatology Assistant
Free
🏥 Medical
(0)
19
Diagnosis
Diagnosis
Diagnosis
OBD Diagnostic
Free
🔧 Utilities
(0)
20
Dow Care
Dow Care
Dow Care
View Dow reports and services.
Free
🏥 Medical
(0)

FAQ about Differential Diagnosis

What are the best differential diagnosis apps for iPhone?
Diagnosaurus® DDx tops our differential diagnosis 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 — 19 of the top differential diagnosis apps we rank are free to download, including Diagnosaurus® DDx and Differential Diagnosis | DDx.
Diagnosaurus® DDx has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 249+ differential diagnosis 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.

Related searches

differential diagnosis guidedifferential diagnosis | ddxcommon differential diagnosisddx: differential diagnosisx-ray differential diagnosis