Best Diagnostic Testing Apps

211+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated June 2026

With an average user rating of 4.4★, the diagnostic testing category is one of the App Store's strongest. Browse all 211+ apps we track, sorted so the most loved ones surface first.

Top Picks for Diagnostic Testing

Laboratory Diagnostic Tests#1

Laboratory Diagnostic Tests by Skyscape Medpresso Inc

Davis's Comprehensive Handbook
Editor's Choice
🏥 Medical
5.0(12 ratings)
FreeAdsIn-App Purchases
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This comprehensive manual provides essential information on laboratory and diagnostic tests, focusing on nursing implications and clinical judgment. It helps healthcare professionals understand test procedures, interpret results, and deliver quality patient care with updated terminology and a student-friendly design.

Davis’s Lab & Diagnostic Tests#2

Davis’s Lab & Diagnostic Tests by Unbound Medicine, Inc.

with Nursing Implications
Strong Contender
🏥 Medical
4.7(84 ratings)
FreeAdsIn-App Purchases
Davis’s Lab & Diagnostic Tests screenshot 1
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This app provides comprehensive guidance on hundreds of diagnostic tests, including interpretation of results, patient preparation, and post-test care. It's designed for nurses and healthcare professionals to understand and implement critical test procedures effectively.

Guide to Diagnostic Tests#3

Guide to Diagnostic Tests by Unbound Medicine, Inc.

Evidence-based recommendations
Worth Considering
🏥 Medical
4.6(35 ratings)
FreeAdsIn-App Purchases
Guide to Diagnostic Tests screenshot 1
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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.

More Diagnostic Testing apps to explore

4
Manual Lab and Diagnostic Test
Manual Lab and Diagnostic Test
Manual Lab and Diagnostic Test
Fischbach - Step-by-Step Guide
Free

This medical reference app provides nurses and health professionals with step-by-step guidance on laboratory and diagnostic tests. It offers detailed information on patient preparation, procedure interpretation, and aftercare, with updates on emerging health considerations.

Step-by-step guidance on diagnostic testsPatient preparation and aftercare instructionsInterpretation of test results
🏥 Medical
(7)
free with in-app purchases
5
Manual Lab Diagnostic Tests
Manual Lab Diagnostic Tests
Manual Lab Diagnostic Tests
With Nursing Implications
Free

This app provides comprehensive information on laboratory and diagnostic tests, including their physiological basis, reference values, and nursing implications. It helps healthcare professionals and students understand test results, plan care, and educate patients. The app offers offline access and smart search functionality.

Detailed test informationPhysiological and pathophysiological understandingReference values with age variations
🏥 Medical
(2)
free with in-app purchases
6
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
7
On/Go
On/Go
On/Go
Delightful health & care
Free

This app offers convenient COVID-19 testing and rapid treatment options for all variants. It also provides quick access to medical experts and effective treatments for common ailments like sniffles, helping users feel better faster.

COVID-19 testing and treatmentRapid diagnosis and treatment for snifflesAccess to medical experts
🏥 Medical
(52K)
free
8
Laboratory Diagnostic Test
Laboratory Diagnostic Test
Laboratory Diagnostic Test
Laboratory Normal Values
Free
🏥 Medical
(0)
9
Lab Notes & Diagnostic Tests
Lab Notes & Diagnostic Tests
Lab Notes & Diagnostic Tests
Nurses' Guide to 400+ Tests
Free

This app serves as a portable reference for nurses, providing essential information on over 400 lab and diagnostic tests. It includes details on preparation, patient care, panic levels, and visual aids, with offline access after initial download.

Covers 400+ lab and diagnostic testsIncludes radiography, imaging, and endoscopyIdentifies panic lab levels and nurse alerts
🏥 Medical
(8)
free with in-app purchases
10
xRapid-Malaria: the automated diagnostic test
xRapid-Malaria: the automated diagnostic test
xRapid-Malaria: the automated diagnostic test
by ianxen ltd
Free

This application enables healthcare professionals to rapidly and accurately diagnose malaria using smartphone microscopy. It analyzes traditional blood smear slides with AI for precise results, offering a cost-effective and accessible solution for global health workers.

Diagnoses malaria from microscope slidesOver 98% accuracyDetects all five Plasmodium types
🏥 Medical
(0)
free
11
Mental Health Tests
Mental Health Tests
Mental Health Tests
by Mind Diagnostics, Inc.
Free

This app offers a quick way to assess potential symptoms of various mental health conditions. It provides a range of tests to help users understand if they might be experiencing issues like depression, anxiety, or addiction. Recovery is possible, and early assessment can be a crucial first step.

Symptom assessment for mental health conditionsTests for depression and anxietyADHD and PTSD assessment
🏥 Medical
(89)
ad-supported
12
MyQuest for Patients
MyQuest for Patients
MyQuest for Patients
by Quest Diagnostics, Inc.
Free

Access your lab results, schedule appointments, and manage your health information securely. Find nearby locations, share data with providers, and even purchase your own tests. Take proactive control of your well-being.

View lab results securelyFind nearby Quest locationsSchedule and manage appointments
🏥 Medical
(466K)
free
13
GPS Diagnostic: Satellite Test
GPS Diagnostic: Satellite Test
GPS Diagnostic: Satellite Test
Precise Coordinates & Altitude
$2.99

This app tests your device's GPS module, providing precise navigation parameters and diagnosing location issues. It supports multiple satellite systems and offers advanced coordinate conversions through an in-app purchase.

Test GPS moduleFast GPS lock timePrecise navigation parameters
🗺️ Navigation
(530)
free with in-app purchases
14
NOX TESTER
NOX TESTER
NOX TESTER
by Proformance Diagnostics LLC
Free

This diagnostic tool tests NOx sensors by connecting to the sensor's circuit board and probe. It activates the sensor, collects data on NOx and oxygen levels for three minutes, and analyzes the results to identify faults and generate a report.

Connects to NOx sensor via diagnostic harnessCommunicates via CAN signalsTests sensor circuit board and detection probe
🔧 Utilities
(1)
free
15
MyLabcorp
MyLabcorp
MyLabcorp
by Laboratory Corporation of America
Free

Manage your health conveniently with this app. Find and schedule lab appointments, check in remotely, and receive notifications for your results and bills. View, download, and pay for reports, and manage multiple accounts.

Find and schedule lab appointmentsRemote check-in via QR codeReceive notifications for results and bills
🏥 Medical
(41K)
free
16
Guide to Diagnostic Tests 7ed
Guide to Diagnostic Tests 7ed
Guide to Diagnostic Tests 7ed
450 Lab & Microbiology Tests
Free

This medical app provides essential guidance on over 450 diagnostic tests, including the latest molecular and genetic advancements. It covers various medical specialties and offers diagnostic algorithms, cost details, and literature citations. A subscription unlocks full content and updates.

Covers 450+ diagnostic testsIncludes molecular and genetic testsDiagnostic algorithms
🏥 Medical
(2)
free with in-app purchases
17
iTest.
iTest.
iTest.
Phone Diagnostics Made Easy
$0.99

Easily test your device's hardware and software without navigating multiple apps or complex settings. Offers guided and manual test modes with clear instructions and results. Ideal for assessing a device's condition before buying or selling.

Guided semi-automatic test modeManual test selectionEasy-to-understand instructions
🔧 Utilities
(47)
free
18
Phone Diagnostics
Phone Diagnostics
Phone Diagnostics
Test & Find Repair Shop
Free

Easily test and check all mobile device functionalities. This app is useful before purchasing a device, sending it for repair, or after receiving it back. It also helps you locate nearby repair shops.

Test device functionalitiesCheck hardware before buyingVerify repairs
🔧 Utilities
(85)
free with in-app purchases
19
Agilus Diagnostics: Blood Test
Agilus Diagnostics: Blood Test
Agilus Diagnostics: Blood Test
Path Lab & Full Body Checkup
Free

Book at-home blood tests and full body checkups with India's largest diagnostics company. Track and manage your health reports, upload prescriptions, and access smart health insights. Offers a loyalty program for rewards and savings.

Book home sample collectionFind nearest labUpload prescription
🏥 Medical
(14)
free
20
OBD JScan
OBD JScan
OBD JScan
by Piotr Bialic
Free

This app provides advanced diagnostics for Jeep, Chrysler, and Dodge vehicles. It allows users to read and clear trouble codes, view live sensor data, and access settings across all vehicle modules, including ABS and transmission.

Read/Clear Diagnostic Trouble CodesAccess Live Data from all sensorsView vehicle settings
🔧 Utilities
(1.3K)
free with in-app purchases