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Best Apple Diagnostics Apps

225+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

If you already know Apple Support, this is the deeper bench. 225+ apple diagnostics apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Top Picks for Apple Diagnostics

Apple Support#1

Apple Support by Apple Inc.

We’re here to help
Editor's Choice
🔧 Utilities
3.9😐(32K ratings)
FreeAds
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Access personalized solutions for all your Apple products and services in one convenient app. Troubleshoot issues with guided steps, chat with support, manage subscriptions, reset passwords, and find nearby service locations for Genius Bar appointments.

What We Love

  • 👍 Helpful and friendly support staff
  • 🚀 Quick response and resolution of issues
  • 💡 Useful troubleshooting features
  • 🔒 Secure and trustworthy service

Room to Improve

  • 🐛 Buggy and unreliable app performance
  • 🤖 Lack of knowledgeable support staff
  • ⏱️ Long wait times and repeated transfers
Apple Developer#2

Apple Developer by Apple Inc.

Strong Contender
🛠️ Developer Tools
4.1(2.1K ratings)
FreeIn-App Purchases
#7in Developer Tools
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Access the latest developer news, features, and videos from Apple. Stay updated on new frameworks and technologies, and catch up on past event content.

Apple Store#3

Apple Store by Apple Inc.

Shopping designed around you
Worth Considering
🛍️ Shopping
3.5😐(162K ratings)
FreeAds
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Discover and shop the latest Apple products with a personalized experience. Get tailored recommendations, track orders, and access support. Explore creative tips and book in-store sessions.

What We Love

  • 🚀 Convenient online shopping
  • 💡 Customizable product options
  • 👍 Easy to navigate
  • 🚀 Fast delivery

Room to Improve

  • 🐛 App crashes and glitches
  • 🔒 Requires iCloud account to use
  • 🔒 Restricted to newer iOS versions

More Apple Diagnostics apps to explore

4
Device Monitor & Diagnostics
Device Monitor & Diagnostics
Device Monitor & Diagnostics
CPU, System, Battery,Temp Info
Free

Gain deep insights into your device's hardware and performance. Monitor CPU, RAM, battery, and sensors, and run diagnostic tests. Generate and export detailed system reports to optimize your device's health and functionality.

Detailed hardware informationSystem report generationDiagnostic tests
📊 Productivity
(73)
free with in-app purchases
5
Device Monitor²
Device Monitor²
Device Monitor²
System activity info
Free

This app provides comprehensive system activity information for Apple devices, including detailed insights into hardware, sensors, and network status. It offers privacy controls, customizable widgets, and advanced testing and reporting features through optional in-app purchases.

Detailed device informationSensor access and privacy controlCustomizable widgets
🛠️ Developer Tools
(9K)
free with in-app purchases
6
Phone Doctor Plus
Phone Doctor Plus
Phone Doctor Plus
by iDea Mobile Tech Inc.
Free

Diagnose over 40 hardware and system issues with this app. Monitor your phone's hardware, battery, memory, and storage. Track network usage and daily charging cycles to keep your device running smoothly.

40+ hardware diagnostic testsSystem monitoring (hardware, battery, memory, storage)Daily battery capacity and charging cycle recording
🔧 Utilities
(325)
ad-supported
7
M360 Diagnostics
M360 Diagnostics
M360 Diagnostics
by ATLAS SOFT Ltd.
Free

This utility app allows you to thoroughly test various components of your mobile device. It offers both automated and interactive tests to ensure everything is functioning correctly. Results can be emailed or shared directly with compatible service centers.

Component testingAutomated testsInteractive tests
🔧 Utilities
(6)
free
8
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
9
Device Monitor - Diagnostics
Device Monitor - Diagnostics
Device Monitor - Diagnostics
System, CPU Battery,Temp Info
Free

Gain deep insights into your device's hardware and performance. Monitor system details, CPU/GPU specs, RAM, storage, and sensor diagnostics. A home screen widget provides real-time CPU status.

Detailed hardware specificationsReal-time CPU/GPU monitoringRAM and storage usage
📊 Productivity
(1)
free with in-app purchases
10
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
11
OBDeleven – OBD2 car scanner
OBDeleven – OBD2 car scanner
OBDeleven – OBD2 car scanner
Diagnostics, service & coding
Free

Transform your smartphone into a powerful car diagnostic and customization tool. Easily scan trouble codes, monitor live data, and access advanced features like coding and service functions for a wide range of car brands. Save time and money on car maintenance and personalization.

Basic OBD2 diagnosticsLive data monitoringAdvanced diagnostics for licensed brands
🔧 Utilities
(1.1K)
free with in-app purchases
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
(464K)
free
13
AIDA64
AIDA64
AIDA64
by FinalWire
Free

Access in-depth hardware and software diagnostics for your iOS device. Get detailed information on your CPU, screen, battery, network, and sensors. Monitor memory, storage, and screen performance with this comprehensive utility.

CPU detailsScreen specificationsBattery status
🔧 Utilities
(2.1K)
free with in-app purchases
14
Device Monitor & Diagnostics +
Device Monitor & Diagnostics +
Device Monitor & Diagnostics +
Phone settings app for iPhone
Free
🔧 Utilities
(1)
15
FIXD OBD2 Scanner
FIXD OBD2 Scanner
FIXD OBD2 Scanner
Clear Your Check Engine Light
Free

This app translates your car's diagnostic trouble codes into plain language, helping you understand potential issues and their severity. It provides maintenance reminders and offers advanced features like issue forecasting and emissions pre-checks with a premium subscription.

Translate check engine light codesUnderstand issue severityMaintenance reminders
🔧 Utilities
(26K)
free with in-app purchases
16
OTR Diagnostics
OTR Diagnostics
OTR Diagnostics
Heavy-duty scan tool made easy
Free

This app helps heavy-duty truck owners diagnose and resolve common issues like fault codes, regen problems, and derates. It provides plain-language explanations of error codes, allows for bi-directional commands to fix issues, and monitors live truck data to prevent downtime.

AI-powered fault code explanationBi-directional commands for repairsReset active/inactive fault codes
🔧 Utilities
(96)
free with in-app purchases
17
Apple Business
Apple Business
Apple Business
by Apple Distribution International
Free

Access essential work apps, connect with colleagues via a company directory, and manage device repairs and support. Stay productive with tools and assistance tailored to your organization's needs.

Install assigned work appsCompany directory and colleague searchCaller ID for organizational contacts
🔧 Utilities
(57)
free
18
Heart Analyzer: Pulse Tracker
Heart Analyzer: Pulse Tracker
Heart Analyzer: Pulse Tracker
Watch Health & Cardio Metrics
Free

Gain deep insights into your heart health using data from your Apple Watch. Visualize trends, analyze metrics like Cardio Recovery and Heart Rate Zones, and generate detailed PDF reports. Offers advanced features and privacy-focused data handling.

Dashboard with daily summariesVisualized heart rate and health data chartsHealth vital trend assessment
💪 Health & Fitness
(22K)
free with in-app purchases
19
BitRaser Mobile Diagnostics2
BitRaser Mobile Diagnostics2
BitRaser Mobile Diagnostics2
Mobile Diagnostics
Free
🔧 Utilities
(0)
20
App Store Connect
App Store Connect
App Store Connect
For App Developers
Free

Manage your apps and submissions directly from your iPhone or iPad. Monitor sales, respond to reviews, manage testers, and generate marketing assets on the go. Receive important notifications about your app's performance and status.

App status and submission managementTester group and build managementSales and trends monitoring
🛠️ Developer Tools
(14K)
free