1. Home
  2. Topics
  3. Diagnosus

Best Diagnosus Apps

203+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated June 2026

Out of 203+ diagnosus apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Diagnosus

DiagnosUs#1

DiagnosUs by CENTAUR DIAGNOSTICS INC

See real cases & earn rewards
Editor's Choice
📚 Education
4.8😊(1K ratings)
FreeAds
DiagnosUs screenshot 1
DiagnosUs screenshot 2
DiagnosUs screenshot 3
DiagnosUs screenshot 4
DiagnosUs screenshot 5
DiagnosUs screenshot 6

Engage with real medical cases to enhance your diagnostic skills and earn rewards. This educational game is designed for students and professionals to test their knowledge across various specialties and contribute to AI research.

What We Love

  • 💰 Earn money while learning
  • 🧠 Helpful for medical students and professionals
  • 🤓 Interesting and educational content
  • 👍 Fun and engaging app

Room to Improve

  • 🐛 Bugs and technical issues (crashes, freezes, slow loading)
  • ⏱️ Time-consuming to compete and earn rewards
  • 🤖 Inconsistent or inaccurate AI-graded answers
Diagnosaurus® DDx#2

Diagnosaurus® DDx by Unbound Medicine, Inc.

Best-selling DDx app worldwide
Strong Contender
🏥 Medical
4.8😐(2.4K ratings)
FreeAdsIn-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
Prognosis: Your Diagnosis#3

Prognosis: Your Diagnosis by Medical Joyworks LLC

Improve your diagnosis skills
Worth Considering
🏥 Medical
4.8😊(2.9K ratings)
FreeAds
Prognosis: Your Diagnosis screenshot 1
Prognosis: Your Diagnosis screenshot 2
Prognosis: Your Diagnosis screenshot 3
Prognosis: Your Diagnosis screenshot 4
Prognosis: Your Diagnosis screenshot 5
Prognosis: Your Diagnosis screenshot 6

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.

What We Love

  • 🚀 Super Amazing Awesome!
  • 👍 Great learning app
  • 👍 Excellent scenarios
  • 👍 Actually Fun

Room to Improve

  • 🐛 Contenido en español
  • 🐛 Mécontent
  • 🐛 Down loading problem

More Diagnosus 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
Earn real money cash - Surveys
Earn real money cash - Surveys
Earn real money cash - Surveys
Get rich easy rewards paid
Free

Share your opinions on various topics and earn real rewards like cash, PayPal, or gift cards. Participate in personalized surveys tailored to your interests and make an impact on product development. Get paid for your valuable input.

Personalized surveysEarn real rewards (cash, PayPal, gift cards)Simple and intuitive interface
🌟 Lifestyle
(22K)
free
6
VisualDx
VisualDx
VisualDx
Medical images & differentials
Free

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.

Build custom differentialsEngage patients with visual aidsImprove diagnostic accuracy
🏥 Medical
(183)
subscription
7
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
8
Circle Medical
Circle Medical
Circle Medical
A modern doctor's office
Free

Access a modern primary care clinic with board-certified providers for same-day or next-day appointments. Establish ongoing relationships for general health, mental health, preventive care, and urgent issues. Video appointments are available in many states.

Same-day/next-day appointmentsBoard-certified providersAnnual physicals and wellness exams
🏥 Medical
(30K)
free
9
UpToDate
UpToDate
UpToDate
by UpToDate
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
(561)
subscription
10
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
11
Osmosis - Med School Study App
Osmosis - Med School Study App
Osmosis - Med School Study App
USMLE, Pance & Medicine Videos
Free

This app helps medical students learn complex concepts faster and retain more information. It offers animated videos, flashcards, notes, and board-style questions to prepare for exams and build clinical skills.

Animated medical videosSpaced repetition flashcardsBoard-style practice questions
🏥 Medical
(3.9K)
free with in-app purchases
12
DocSquad
DocSquad
DocSquad
Telehealth & Telemedicine
Free

Access virtual healthcare services from qualified providers on your schedule. Get diagnoses for common conditions, treatment plans, and prescription refills quickly, with or without insurance. Connect with board-certified US-based providers for convenient care.

Virtual care on your timeDigital Diagnosis for common conditionsPrescription refills without office visits
🏥 Medical
(3.9K)
free with in-app purchases
13
Eponyms (for students)
Eponyms (for students)
Eponyms (for students)
Learn Medical Terms
Free

This app provides quick access to definitions for approximately 1800 medical eponyms, drawing from a comprehensive database. It features a learn mode for efficient study and allows users to search, browse by category, and star favorite terms.

1800+ medical eponymsFull text searchBrowse by category
🏥 Medical
(8)
free
14
Dr Lal PathLabs
Dr Lal PathLabs
Dr Lal PathLabs
by Dr Lal Pathlabs Limited
Free

Book diagnostic tests, including blood and urine analyses, and comprehensive health checkups easily and reliably. Access over 5000 test options and track your reports conveniently. Offers home sample collection and nearby center location.

Book blood, urine, and health checkup testsHome sample collection optionAccess and download test reports
🏥 Medical
(84)
free
15
Davis Lab and Diagnostic Tests
Davis Lab and Diagnostic Tests
Davis Lab and Diagnostic Tests
Nursing Implications 9th Ed
Free

This medical reference app provides comprehensive information on lab and diagnostic tests. It helps users understand test procedures, interpret results, and offer quality patient care with detailed nursing implications, common uses, and interfering factors.

Alphabetical listing of testsSearchable by abbreviation, synonym, diseasePotential Nursing Problems tables
🏥 Medical
(2)
free with in-app purchases
16
Xtool Anyscan
Xtool Anyscan
Xtool Anyscan
OBD Diagnostic
Free

This smart diagnostic system connects to your iPhone or iPad to provide on-demand vehicle diagnostics. It offers comprehensive coverage for a wide range of car makes and includes full system diagnosis with various special functions.

Comprehensive vehicle coverageFull system diagnosisSpecial functions
🔧 Utilities
(70)
free
17
Senseye Diagnostic
Senseye Diagnostic
Senseye Diagnostic
by Senseye, Inc.
Free

This app uses AI and eye-tracking on a mobile phone to assess nervous system activation for diagnosing and measuring the severity of mental health conditions. It provides clinicians with insights into a patient's mental health through diagnostic sequences.

AI-powered mental health diagnosisNervous system activation measurementEye-tracking technology
🏥 Medical
(322)
free
18
Eponyms
Eponyms
Eponyms
Learn Medical Terms
$1.99

This app provides a quick reference for approximately 1800 medical eponyms, including common and obscure terms. It features full-text search, categorized browsing, and a learn mode for studying. Star your favorite eponyms for easy recall and practice.

1800+ medical eponymsFull text searchBrowse by 26 categories
🏥 Medical
(1)
paid
19
MediBuddy-Dr Labs Meds ABHA
MediBuddy-Dr Labs Meds ABHA
MediBuddy-Dr Labs Meds ABHA
Surgery Dental Vision Ecard
Free

Access a comprehensive range of medical services from your phone. Book doctor appointments, order medicines for home delivery, schedule lab tests with home sample collection, and manage your digital health records. Connect with over 180,000 doctors across 26 specialties.

Online doctor consultationsMedicine delivery to doorstepLab test booking with home collection
🏥 Medical
(729)
free with in-app purchases
20
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