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Best Differential Diagnosis Apps

250+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated September 2026

The best differential diagnosis apps on iPhone average 4.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Differential Diagnosis Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Diagnosaurus® DDxDiagnosaurus® DDxFree4.8★ (2.5K)NoYesSep 2026
2Differential Diagnosis | DDxDifferential Diagnosis | DDxFree—NoYesSep 2026
3DSM-5-TR® Diagnosis HandbookDSM-5-TR® Diagnosis HandbookFree4.6★ (1.6K)NoYesSep 2026
4DDx: Differential DiagnosisDDx: Differential DiagnosisFree—NoYesAug 2026
5GP DiagnosisGP DiagnosisFree—NoNoAug 2026
6Symptom to Diagnosis EB GuideSymptom to Diagnosis EB GuideFree4.5★ (30)YesYesSep 2026
7Common Differential DiagnosisCommon Differential DiagnosisFree5.0★ (2)NoNoMay 2026
8Differential Diagnosis GuideDifferential Diagnosis GuideFree4.5★ (22)NoNoMay 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
  • 👍 Useful for medical students and practitioners

Room to Improve

  • 🐛 Lack of in-depth information
  • 🐛 Incomplete differential diagnoses
  • 🐛 Lack of links to explain conditions
  • 🐛 Requires in-app purchase to access full content
  • 🐛 Unreliable update mechanism
DSM-5-TR® Diagnosis Handbook#3

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

Differential DDx Text Revision
Worth Considering
🏥 Medical
4.6😞(1.6K ratings)
FreeIn-App Purchases
#67in 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
  • 🤔 Misleading or incomplete information

More Differential Diagnosis apps to explore

FAQ about Differential Diagnosis

What are the best differential diagnosis apps for iPhone?
Diagnosaurus® DDx tops our differential diagnosis apps ranking as of September 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 September 2026.
We track 250+ differential diagnosis apps on the iOS App Store as of September 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

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