Best Medical Diagnosis Apps

203+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated July 2026

From beginner-friendly picks to power-user tools, our medical diagnosis list covers 203+ iPhone apps updated through July 2026. Compare ratings, prices, and screenshots in one place.

Compare top Medical Diagnosis Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1WebMD: Symptom CheckerWebMD: Symptom CheckerFree4.7★ (135K)YesNoJul 2026
2AMBOSS Medical KnowledgeAMBOSS Medical KnowledgeFree4.9★ (14K)YesYesJul 2026
3VisualDxVisualDxFree4.4★ (185)NoYesJul 2026
4Ada - your health portalAda - your health portalFree4.8★ (11K)NoNoJul 2026
5Prognosis: Your DiagnosisPrognosis: Your DiagnosisFree4.8★ (2.9K)YesNoJul 2026
6Diagnosaurus® DDxDiagnosaurus® DDxFree4.8★ (2.4K)YesYesJul 2026
7MDCalc Medical CalculatorMDCalc Medical CalculatorFree4.9★ (51K)NoNoJul 2026
8Figure 1 - Medical CasesFigure 1 - Medical CasesFree4.7★ (1.4K)YesNoJul 2026

Top Picks for Medical Diagnosis

WebMD: Symptom Checker#1

WebMD: Symptom Checker by WebMD

Med Reminders, Doctor Finder
Editor's Choice
🏥 Medical
4.7😐(135K ratings)
FreeAds
WebMD: Symptom Checker screenshot 1
WebMD: Symptom Checker screenshot 2
WebMD: Symptom Checker screenshot 3
WebMD: Symptom Checker screenshot 4
WebMD: Symptom Checker screenshot 5
WebMD: Symptom Checker screenshot 6

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

What We Love

  • 👍 Useful medical information
  • 🚀 Easy to navigate
  • 💊 Helpful medication reminders
  • 📚 Valuable medical resource

Room to Improve

  • 🐛 Frequent crashes
  • 🔍 Limited search functionality
  • 💻 Outdated or missing information
AMBOSS Medical Knowledge#2

AMBOSS Medical Knowledge by AMBOSS

For study & clinical decisions
Strong Contender
🏥 Medical
4.9😊(14K ratings)
FreeAdsIn-App Purchases
#34in Medical
AMBOSS Medical Knowledge screenshot 1
AMBOSS Medical Knowledge screenshot 2
AMBOSS Medical Knowledge screenshot 3
AMBOSS Medical Knowledge screenshot 4
AMBOSS Medical Knowledge screenshot 5
AMBOSS Medical Knowledge screenshot 6

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.

What We Love

  • 👍 Easy to navigate and fast to find information
  • 🚀 Comprehensive and clear
  • 🚀 Excellent platform for learning medicine
  • 🚀 Great medical resource for students and clinicians

Room to Improve

  • 🐛 Difficulties using the app and studying after recent update
  • 🔓 App limitations like no highlighting, text size adjustment, or digital notebook
  • 🐛 Occasional crashes
VisualDx#3

VisualDx by Logical Images

Medical images & differentials
Worth Considering
🏥 Medical
4.4😊(185 ratings)
FreeIn-App Purchases
#22in Medical
VisualDx screenshot 1
VisualDx screenshot 2
VisualDx screenshot 3
VisualDx screenshot 4

This visual reference tool aids medical professionals in improving patient engagement and diagnostic accuracy. It utilizes AI and a vast image atlas to help build custom differentials, share patient-specific images, and access comprehensive diagnostic information. Earn continuing education credits while making better medical decisions.

What We Love

  • 📸 Excellent clinical images and kodachromes
  • 👍 User-friendly interface and easy navigation
  • 🎓 Comprehensive differential diagnosis tool
  • 📚 Detailed disease summaries and treatment information

Room to Improve

  • 💰 Expensive subscription cost
  • ❌ Difficult subscription cancellation process
  • 🐛 App crashes and performance issues

More Medical Diagnosis apps to explore

4
Ada - your health portal
Ada - your health portal
Ada - your health portal
Access health assessment
Free

Access a 24/7 symptom checker to understand potential health concerns. Answer simple questions and receive a personalized assessment report with possible causes and next steps. This app connects to a CE-marked medical device for smart health insights.

24/7 symptom checkerAI-powered assessmentPersonalized health reports
🏥 Medical
(11K)
free with in-app purchases
5
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
6
Diagnosaurus® DDx
Diagnosaurus® DDx
Diagnosaurus® DDx
Best-selling DDx app worldwide
Free

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.

Over 1,000 differential diagnosesSearch by organ system, symptom, or diseaseSee Related DDx feature
🏥 Medical
(2.4K)
free with in-app purchases
7
MDCalc Medical Calculator
MDCalc Medical Calculator
MDCalc Medical Calculator
Clinical Decision Support
Free

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.

900+ evidence-based calculatorsOffline functionalityExpert insights and commentary
🏥 Medical
(51K)
free
8
Figure 1 - Medical Cases
Figure 1 - Medical Cases
Figure 1 - Medical Cases
Expand your clinical knowledge
Free

Connect with healthcare professionals worldwide to view, share, and discuss real-world patient cases. Access thousands of common and rare cases to enhance your clinical knowledge and improve patient diagnosis and treatment.

View, share, and discuss medical casesReal-time collaboration with expertsAccess thousands of common and rare cases
🏥 Medical
(1.4K)
ad-supported
9
QMDT: Quick Medical Diagnosis
QMDT: Quick Medical Diagnosis
QMDT: Quick Medical Diagnosis
& Current Treatment w/ Updates
Free

Access a comprehensive guide for medical diagnosis and evidence-based treatment options. This resource provides concise coverage of over 950 diseases and disorders, updated annually with expert information and links to primary literature.

Guidance on 950+ diseases and disordersAnnual updatesEvidence-based diagnosis and treatment
🏥 Medical
(66)
free with in-app purchases
10
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
11
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
12
epocrates: Drug Info & Pill ID
epocrates: Drug Info & Pill ID
epocrates: Drug Info & Pill ID
Dosing, Interactions, & Labs
Free

This clinical reference app empowers healthcare professionals to make safer, faster decisions. It offers comprehensive drug information, interaction checks, pill identification, lab values, and dosing calculators. Access essential clinical tools offline to enhance patient care and workflow efficiency.

Comprehensive Drug ReferenceDrug Interaction CheckerPill Identifier
🏥 Medical
(7.1K)
free with in-app purchases
13
Full Code Medical Simulation
Full Code Medical Simulation
Full Code Medical Simulation
Doctor, nurse & EMT education
Free

Engage in realistic medical simulations with over 260 virtual cases designed by experts. Practice diagnosing and treating patients, hone your clinical skills, and earn CME credits in a game-like environment. Ideal for medical students and professionals seeking to improve their decision-making.

260+ expert-written virtual casesMultiple diagnostic disciplinesRealistic patient avatars
🏥 Medical
(6.1K)
free with in-app purchases
14
Merck Manual Professional
Merck Manual Professional
Merck Manual Professional
by Merck & Co Inc
Free

This medical reference app offers healthcare practitioners and students clear, practical explanations for thousands of conditions across major medical and surgical specialties. It includes photos, illustrations, instructional videos, drug information, quizzes, and case simulations to stay updated with the latest clinical information.

Thousands of medical topicsPhotos and illustrationsInstructional 'How to' videos
🏥 Medical
(1K)
free
15
DDx: Differential Diagnosis
DDx: Differential Diagnosis
DDx: Differential Diagnosis
Symptom-to-diagnosis reference
Free
🏥 Medical
(0)
16
mymediktor - Symptom Checker
mymediktor - Symptom Checker
mymediktor - Symptom Checker
Solve your health questions
Free

This app helps you understand your health concerns by analyzing your symptoms using artificial intelligence. It provides a list of potential conditions and recommendations based on your input, along with a disease dictionary. It is a licensed medical device for informational purposes only and does not replace professional medical advice.

Symptom analysis with AIList of possible conditionsDisease dictionary
🏥 Medical
(178)
free
17
Inspire® - Health Community
Inspire® - Health Community
Inspire® - Health Community
Resources for medical support
Free

Connect with a supportive community for various medical conditions. Find answers, share experiences, and access resources for treatment information and clinical trials. Your health journey is easier with others who understand.

Condition-specific communitiesConnect with patients and caregiversTreatment information access
🏥 Medical
(2.7K)
free with in-app purchases
18
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
19
Clinical Sense
Clinical Sense
Clinical Sense
Improve your diagnosis skills
Free

Practice managing patients through challenging clinical scenarios. This app helps healthcare professionals and students hone their diagnostic and management skills across various medical specialties. New scenarios are added weekly, reflecting current health trends.

Patient management simulationReal-time medical decision makingDiverse medical specialties
🏥 Medical
(252)
ad-supported
20
Zocdoc - Find and book doctors
Zocdoc - Find and book doctors
Zocdoc - Find and book doctors
Top-rated, in-network care
Free

Easily find and book appointments with in-network doctors and specialists. Search by insurance, specialty, or availability to schedule in-person or telehealth visits. Read reviews, fill out forms online, and receive appointment reminders.

Search by insurance and locationBrowse by specialty and availabilityFilter by distance, gender, ratings
🏥 Medical
(170K)
free

FAQ about Medical Diagnosis

What are the best medical diagnosis apps for iPhone?
WebMD: Symptom Checker tops our medical diagnosis apps ranking as of July 2026, with a 4.7-star average from 135K App Store ratings, and it's free to download.
Yes — 20 of the top medical diagnosis apps we rank are free to download, including WebMD: Symptom Checker and AMBOSS Medical Knowledge.
WebMD: Symptom Checker shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 203+ medical diagnosis apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to check your symptoms to learn about potential conditions, set medication reminders to never miss a dose, find doctors and specialists in your area, and save money on prescriptions. It also provides medically-reviewed information about various health conditions and drugs.
The Doctor Directory feature allows you to find the closest doctors and specialists based on your current location. You can also search by city, state, or zip code to locate healthcare providers.

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