Best Idiagnosis Apps

21+ iOS apps curated and reviewed

4.1 avg rating
18 free apps
Updated June 2026

Looking for free idiagnosis apps? 18 of our 21+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Idiagnosis

iDiagnosis#1

iDiagnosis by V Group Inc.

Editor's Choice
🔧 Utilities
3.4(16 ratings)
Free
iDiagnosis screenshot 1
iDiagnosis screenshot 2
iDiagnosis screenshot 3
iDiagnosis screenshot 4
iDiagnosis screenshot 5
iDiagnosis screenshot 6

This mobile app helps diagnose and test various components, hardware, and sensors of your device, providing a detailed report of each test. It allows you to verify that your phone's features are working properly, making it a useful tool for buying a second-hand phone or checking your existing device's functionality.

Device Monitor²#2

Device Monitor² by Marco Ricca

System activity info
Strong Contender
🛠️ Developer Tools
4.7😊(8K ratings)
FreeIn-App Purchases
#29in Developer Tools
Device Monitor² screenshot 1
Device Monitor² screenshot 2
Device Monitor² screenshot 3
Device Monitor² screenshot 4
Device Monitor² screenshot 5
Device Monitor² screenshot 6

Discover vital system activity info with this app optimized for Apple devices, offering detailed insights into sensors, RAM, storage, CPU, network, battery, display, and more. Customize widgets and enjoy additional features with in-app purchases for an enhanced experience.

What We Love

  • 🚀 Effective RAM cleaning
  • 🔍 Detailed device information
  • 🔧 Useful toolkit features
  • 💰 Fair one-time pricing

Room to Improve

  • 🐛 RAM cleaning issues after updates
  • 🔌 High background battery usage
  • 🕰️ Slow RAM cleaning process
Phone Doctor Plus#3

Phone Doctor Plus by iDea Mobile Tech Inc.

Worth Considering
🔧 Utilities
4.4😊(325 ratings)
FreeAds
Phone Doctor Plus screenshot 1
Phone Doctor Plus screenshot 2
Phone Doctor Plus screenshot 3

Discover invisible smartphone issues with over 40 hardware and system diagnostic tests. Monitor battery, memory, network usage, and more. Stay on top of your phone's health with daily tracking of battery capacity. Contact service@dribunny.com for assistance.

What We Love

  • 🚀 Extensive audio testing
  • 👍 Comprehensive diagnostics
  • 🔍 Detailed phone status report
  • 💡 Helpful for buying/selling used phones

Room to Improve

  • 🐛 Occasional crashes
  • 🔧 Lacks troubleshooting guidance
  • 🔍 Some tests don't work as expected

More Idiagnosis apps to explore

4
Apple Support
Apple Support
Apple Support
We’re here to help
Free

Access personalized support for all your Apple products and services through the app. Troubleshoot issues with real-person chat or step-by-step guides, find nearby stores, book reservations, and manage subscriptions. No AppleCare plan required.

🔧 Utilities
(31K)
5
Device Status⁺
Device Status⁺
Device Status⁺
System activity info|Monitor
Free

This iPhone and iPad app provides a comprehensive view of device status, allowing users to monitor and manage device information, sensors, and parameters, including location, motion, connectivity, sensors, and output features. With this app, users can quickly check device status and troubleshoot issues with a variety of sensors and functions.

🛠️ Developer Tools
(85)
6
Phone Diagnostics
Phone Diagnostics
Phone Diagnostics
Test & Find Repair Shop
Free

Perform thorough diagnostics on your phone, including tests for display, battery, sensors, connectivity, and more. Ensure your device is functioning optimally with just a few taps. Discover and fix potential problems quickly.

🔧 Utilities
(85)
7
Plant Disease Identifier.
Plant Disease Identifier.
Plant Disease Identifier.
Plant Diagnosis & Doctor
Free

Plant Disease Identifier is a cutting-edge app that swiftly identifies plant diseases through image recognition technology. Simply snap a photo of the affected plant and receive instant analysis and treatment recommendations. Protect your plants with quick and accurate diagnoses today.

🔍 Reference
(76)
8
Phonecheck
Phonecheck
Phonecheck
Mobile Device Testing
Free

Easily assess key functions of your used mobile device with a streamlined checklist and step-by-step guidance. Get access to available device details and helpful prompts to guide your manual review and evaluate basic functionality.

🔧 Utilities
(5)
9
Laboratory Diagnostic Tests
Laboratory Diagnostic Tests
Laboratory Diagnostic Tests
Davis's Comprehensive Handbook
Free

This comprehensive handbook provides nursing professionals with a detailed guide to laboratory and diagnostic tests, offering interpretive guidance on test results and their implications for patient care. Download the app to try out sample content, and unlock all features with an in-app purchase to access the latest information and updates.

🏥 Medical
(12)
10
Plants Diseases Identifier
Plants Diseases Identifier
Plants Diseases Identifier
Plant Disease Leaf Detector
$2.99
🔧 Utilities
(9)
11
Davis Lab and Diagnostic Tests
Davis Lab and Diagnostic Tests
Davis Lab and Diagnostic Tests
Nursing Implications 9th Ed
Free
🏥 Medical
(2)
12
Plant Problem Identifier
Plant Problem Identifier
Plant Problem Identifier
Plants ID: Identify & Diagnose
Free

An app designed to accurately identify plants using image recognition technology. Simply take a picture of a plant and let the app provide you with detailed information about it. Start exploring the world of plants today!

🔍 Reference
(156)
13
Pdx
Pdx
Pdx
by Elisabeth Boileau
Free
📚 Education
(0)
14
PlantAI Identifier Diagnose
PlantAI Identifier Diagnose
PlantAI Identifier Diagnose
Plant ID and Care Guide App
Free

This plant recognition app helps you identify plants and diagnose diseases using cutting-edge technology, providing instant identification and expert care tips to keep your plants healthy. Download the app to discover a world of plant knowledge, connect with a community of enthusiasts, and take your gardening experience to the next level.

🔍 Reference
(4)
15
HBK of Nursing Diagnosis
HBK of Nursing Diagnosis
HBK of Nursing Diagnosis
Lynda Carpenito
Free
🏥 Medical
(0)
16
Differential Diagnosis | DDx
Differential Diagnosis | DDx
Differential Diagnosis | DDx
Analysis of Symptoms & Signs
Free
🏥 Medical
(0)
17
Symptom to Diagnosis EB Guide
Symptom to Diagnosis EB Guide
Symptom to Diagnosis EB Guide
Evidence Based Medicine + DDx
Free

This medical application helps students and residents learn internal medicine through an engaging, case-based approach, teaching an evidence-based process for evaluating, diagnosing, and treating patients based on their clinical complaints. Try the free version and unlock all content with an in-app purchase to access a comprehensive guide to developing diagnostic skills.

🏥 Medical
(29)
18
Diagnosekoder ICD-10
Diagnosekoder ICD-10
Diagnosekoder ICD-10
by Medicon Apps
$2.99
🏥 Medical
(0)
19
Manual Lab Diagnostic Tests
Manual Lab Diagnostic Tests
Manual Lab Diagnostic Tests
With Nursing Implications
Free

This comprehensive resource provides nurses and students with detailed information on laboratory and diagnostic tests, including nursing implications, reference values, and clinical applications, to aid in critical thinking and care planning. Download the free app to try before you buy and unlock all content with an in-app purchase.

🏥 Medical
(2)
20
Plant Identifier & Diagnosis
Plant Identifier & Diagnosis
Plant Identifier & Diagnosis
Plant & Tree ıdentifier: Petal
Free
🔧 Utilities
(0)