Best Ddx Apps

118+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated May 2026

Looking for free ddx apps? 19 of our 118+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Ddx

DDX Fitness#1

DDX Fitness by DDX TECH LLC.

Editor's Choice
💪 Health & Fitness
4.6(129 ratings)
Free
DDX Fitness screenshot 1
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Access your fitness club with a QR code, view club schedules, and book group or personal training sessions. Explore over 100 online workout programs with an optional subscription for flexible training anytime, anywhere.

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
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Diagnosaurus® DDx screenshot 3
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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

More Ddx apps to explore

4
STATworkUP® DDx Clinical Guide
STATworkUP® DDx Clinical Guide
STATworkUP® DDx Clinical Guide
Medical Differential Diagnosis
$29.99
$34.99 | 14% 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
5
MobileDDx™ Pocket DDx Tool
MobileDDx™ Pocket DDx Tool
MobileDDx™ Pocket DDx Tool
McGraw-Hill Diagnosaurus
Free

This medical reference tool provides over 1,000 differential diagnoses for medicine and surgery. It allows users to explore conditions by organ system, symptoms, or diseases, and includes 1-year online access. Powerful search technology enables quick information retrieval without an internet connection after initial download.

Over 1,000 differential diagnosesSign & Symptom indexDisease Index
🏥 Medical
(19)
free with in-app purchases
6
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
7
Fitness App: Gym Workout Plan
Fitness App: Gym Workout Plan
Fitness App: Gym Workout Plan
Exercise tracker, home routine
Free

This app offers comprehensive workout plans and diet guidance for various fitness goals, including weight loss, muscle gain, and toning. It features a vast exercise library with 3D animations, a personal workout diary, and the option to connect with certified personal coaches for tailored online training and nutrition plans.

Full body workout plans3D exercise animationsPersonal workout diary
💪 Health & Fitness
(34K)
free with in-app purchases
8
DDP Yoga Fitness & Motivation
DDP Yoga Fitness & Motivation
DDP Yoga Fitness & Motivation
Best Rated Low Impact Workout
Free

This app offers a low-impact fitness program combining yoga, rehab therapy, and calisthenics. It provides a variety of workouts, motivational content, progress tracking, and healthy recipes. Designed for all fitness levels, it aims to improve strength, flexibility, and reduce pain without high-impact movements.

Low-impact workoutsYoga, rehab, and calisthenics fusionWorkouts for limited mobility
💪 Health & Fitness
(15K)
subscription
9
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
10
SMART IRON Gym Workout Routine
SMART IRON Gym Workout Routine
SMART IRON Gym Workout Routine
Hypertrophy training planner
Free

This app provides structured, science-based gym workout programs designed for muscle growth and strength. It offers progressive overload and periodization to ensure continuous progress and prevent stagnation, making it ideal for both beginners and experienced athletes.

Ready-made workout programsProgressive overload guidanceTraining periodization
💪 Health & Fitness
(20)
free with in-app purchases
11
LB Medical Causes & DDx
LB Medical Causes & DDx
LB Medical Causes & DDx
Differential Diagnosis App
Free

This app provides a comprehensive list of potential causes for various symptoms, signs, and investigation findings. It's designed to aid medical professionals and students in formulating differential diagnoses and planning investigations. Features include easy navigation, quick search, and bookmarking capabilities.

Extensive lists of medical causesDifferential diagnosis formulation aidInvestigation planning support
🏥 Medical
(2)
free
12
Derm DDx
Derm DDx
Derm DDx
650+ Dermatology Images
Free

This app provides visual, point-of-care guidance for diagnosing skin disorders. It features a large database of high-resolution images, allowing users to compare variations, zoom in, and access clinical history and treatment options for over 160 dermatologic conditions.

650+ high-quality dermatology imagesGuidance for 160+ dermatologic conditionsSide-by-side image variations
🏥 Medical
(4)
free with in-app purchases
13
Drugs.com Medication Guide
Drugs.com Medication Guide
Drugs.com Medication Guide
Know more. Be sure.
Free

Access comprehensive information on over 24,000 medications, including prescription drugs, OTCs, and natural products. Manage your medications, check for interactions, identify pills, and find the lowest prices. Stay informed with FDA alerts and detailed side effect information.

Medication list with interaction trackingDrug price comparison and pharmacy finderPill identification by imprint, color, and shape
🏥 Medical
(15K)
free with in-app purchases
14
VanderbiltDDx - Case Simulator
VanderbiltDDx - Case Simulator
VanderbiltDDx - Case Simulator
by Vanderbilt University Medical Center
Free
🏥 Medical
(1)
15
DMXcat®
DMXcat®
DMXcat®
by City Theatrical, Inc
Free

Control, analyze, and test DMX lighting fixtures wirelessly from your smartphone. This system uses a hardware dongle and free mobile apps to simplify lighting control without complex consoles. It supports various functions like DMX and RDM control, fixture management, and DIP switch calculations.

Wireless DMX and RDM controlFixture control with built-in databaseDMX analysis and testing
🔧 Utilities
(25)
free
16
IntensFit: My Fitness Online
IntensFit: My Fitness Online
IntensFit: My Fitness Online
Weight Loss, Workout & Gym
Free

Achieve weight loss and improve your health with personalized workout and nutrition programs. Designed by professionals, this app offers structured guidance and support to help you reach your fitness goals step by step.

Personalized weight loss programsWorkout routines for all goalsBalanced nutrition guidance
💪 Health & Fitness
(6)
free with in-app purchases
17
Digi-DDx
Digi-DDx
Digi-DDx
Practice diagnosis skills
Free

Practice diagnostic reasoning with simulated patient cases. Make informed decisions on diagnostic tests and patient management, comparing your efficiency and cost to experienced clinicians. Learn from feedback and access relevant literature.

Simulated patient casesDiagnostic test selectionPatient management choices
🏥 Medical
(3)
free
18
3DWOX Mobile
3DWOX Mobile
3DWOX Mobile
by SeungHun Lee
Free

This app allows users to remotely monitor and manage multiple compatible 3D printers. It features an internal camera for real-time viewing and requires a network connection for full functionality. Only specific models are supported.

Register multiple 3DWOX printersMonitor via internal cameraSupports only Sindoh 3DWOX models
📊 Productivity
(11)
free
19
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
20
Мои тренировки и клиенты: учет
Мои тренировки и клиенты: учет
Мои тренировки и клиенты: учет
Планер и календарь тренировок
Free
💪 Health & Fitness
(0)

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