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Best Differential Diagnosis Guide Apps

250+ iOS apps curated and reviewed

4.6 avg rating
17 free apps
Updated August 2026

Whether you're new to differential diagnosis guide or looking for an upgrade, our curated collection of 250+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Differential Diagnosis Guide Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Diagnosaurus® DDxDiagnosaurus® DDxFree4.8★ (2.5K)NoYesAug 2026
2Differential Diagnosis GuideDifferential Diagnosis GuideFree4.5★ (22)NoNoMay 2026
3Differential Diagnosis | DDxDifferential Diagnosis | DDxFree—NoYesAug 2026
4DSM-5-TR® Diagnosis HandbookDSM-5-TR® Diagnosis HandbookFree4.6★ (1.5K)NoYesAug 2026
5Bates' Pocket GuideBates' Pocket GuideFree4.8★ (300)NoYesAug 2026
6Symptom to Diagnosis EB GuideSymptom to Diagnosis EB GuideFree4.5★ (30)YesYesJul 2026
7Prognosis: Your DiagnosisPrognosis: Your DiagnosisFree4.8★ (2.9K)YesNoAug 2026
8WebMD: Symptom CheckerWebMD: Symptom CheckerFree4.7★ (135K)YesNoAug 2026

Top Picks for Differential Diagnosis Guide

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
Differential Diagnosis Guide#2

Differential Diagnosis Guide by RADIOLOGiQ, LLC

Thoracic Radiology
Strong Contender
🏥 Medical
4.5(22 ratings)
Free
Differential Diagnosis Guide screenshot 1
Differential Diagnosis Guide screenshot 2
Differential Diagnosis Guide screenshot 3
Differential Diagnosis Guide screenshot 4
Differential Diagnosis Guide screenshot 5

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.

More Differential Diagnosis Guide apps to explore

4
DSM-5-TR® Diagnosis Handbook
DSM-5-TR® Diagnosis Handbook
DSM-5-TR® Diagnosis Handbook
Differential DDx Text Revision
Free

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.

Interactive decision trees for diagnosisReview selected diagnostic pathsAlgorithms for enhanced assessment
🏥 Medical
(1.5K)
free with in-app purchases
5
Bates' Pocket Guide
Bates' Pocket Guide
Bates' Pocket Guide
Physical Exam & History Taking
Free

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.

Over 130 detailed topicsStep-by-step instructionsUpdated photographs and illustrations
🏥 Medical
(300)
free with in-app purchases
6
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
7
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
8
WebMD: Symptom Checker
WebMD: Symptom Checker
WebMD: Symptom Checker
Med Reminders, Doctor Finder
Free

This app helps you check symptoms, get medication reminders, and find doctors. It also offers prescription savings and information on conditions and drugs.

Symptom CheckerMedication RemindersPrescription Savings
🏥 Medical
(135K)
free with in-app purchases
9
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
10
STATworkUP® DDx Clinical Guide
STATworkUP® DDx Clinical Guide
STATworkUP® DDx Clinical Guide
Medical Differential Diagnosis
$24.99
$25.99 | 4% OFF

This medical reference app aids healthcare professionals and students in differential diagnosis and treatment decisions. It correlates symptoms, tests, and conditions to help avoid errors and improve patient care. Features include evidence-based facts, practice guidelines, and rapid access to information for thousands of medical terms.

Differential diagnostic toolsPractice guidelinesEvidence-based facts
🏥 Medical
(10)
paid
11
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
12
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
13
DDx: Differential Diagnosis
DDx: Differential Diagnosis
DDx: Differential Diagnosis
Symptom-to-diagnosis reference
Free
🏥 Medical
(0)
14
Diagnosis
Diagnosis
Diagnosis
OBD Diagnostic
Free
🔧 Utilities
(0)
15
ICD10 Consult
ICD10 Consult
ICD10 Consult
Smart, quick medical coding
Free

Access a comprehensive and current ICD-10-CM medical coding resource with flexible, natural language search. This app simplifies coding by understanding synonyms, acronyms, and variations in terminology, and allows for custom notes and quick access to frequently used codes.

Flexible, natural language searchCustomizable code notesCross-referenced acronyms and synonyms
🏥 Medical
(14K)
ad-supported
16
Symptom to Diagnosis 4/E
Symptom to Diagnosis 4/E
Symptom to Diagnosis 4/E
+ smart search suggestions
$49.99
🏥 Medical
(0)
17
docOPD - Diagnosis to Cure
docOPD - Diagnosis to Cure
docOPD - Diagnosis to Cure
Save 50% on Medical Expense
Free

This app offers a health card and subscription plans to reduce out-of-pocket medical expenses in India. It provides discounts on consultations, tests, and medicines, along with free services like second opinions and screenings.

Health card with infinite benefitsUp to 50% savings on medical expensesDiscounts on OPD consultations, health tests, and medicines
🏥 Medical
(0)
free
18
Evidence-Based Diagnosis, 3/E
Evidence-Based Diagnosis, 3/E
Evidence-Based Diagnosis, 3/E
+ smart search suggestions
$54.99
🏥 Medical
(0)
19
GP Diagnosis
GP Diagnosis
GP Diagnosis
The Medical Diagnosis App
Free
🏥 Medical
(0)
20
Ward Guide
Ward Guide
Ward Guide
by Mian Jawad Ahmad
Free
🏥 Medical
(0)

FAQ about Differential Diagnosis Guide

What are the best differential diagnosis guide apps for iPhone?
Diagnosaurus® DDx tops our differential diagnosis guide 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 — 17 of the top differential diagnosis guide apps we rank are free to download, including Diagnosaurus® DDx and Differential Diagnosis Guide.
Diagnosaurus® DDx has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ differential diagnosis guide 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.