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Best Machinery Diagnostics App

225+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated July 2026

Finding the right machinery diagnostics app app can be overwhelming with so many options. We've analyzed 225+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Machinery Diagnostics App

OBDeleven – OBD2 car scanner#1

OBDeleven – OBD2 car scanner by OBDeleven UAB

Diagnostics, service & coding
Editor's Choice
🔧 Utilities
4.4😞(1.1K ratings)
FreeIn-App Purchases
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OBDeleven – OBD2 car scanner screenshot 5
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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.

What We Love

  • 🚀 Helpful diagnostic tool
  • 👍 Easy to use
  • 💡 Useful features for VW/Audi owners

Room to Improve

  • 🐛 Compatibility issues with newer devices/OS
  • 💰 Expensive credits/subscription model
  • 🔍 Limited functionality compared to alternatives
OTR Diagnostics#2

OTR Diagnostics by OTR Performance, Inc

Heavy-duty scan tool made easy
Strong Contender
🔧 Utilities
4.0(96 ratings)
Free
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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.

AUTOsist Fleet Management App#3

AUTOsist Fleet Management App by AUTOsist

Maintenance, Inspections, GPS
Worth Considering
💼 Business
4.2😊(341 ratings)
FreeAdsIn-App Purchases
AUTOsist Fleet Management App screenshot 1
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Manage your fleet's maintenance, inspections, and GPS tracking with this comprehensive mobile app. Drivers can complete digital inspections, and maintenance staff can update work orders. It helps monitor fuel economy, set reminders, and track vehicle locations.

What We Love

  • 🚀 Easy maintenance management
  • 💡 Ability to export maintenance reports
  • 👍 Great for automotive DIY
  • 👍 Useful for keeping track of vehicle history

Room to Improve

  • 🐛 Lost all records
  • 🐛 Terrible iPad support
  • 🐛 Configuration problems

More Machinery Diagnostics App apps to explore

4
Ford DiagNow
Ford DiagNow
Ford DiagNow
by Ford Motor Company
Free

This app offers a streamlined diagnostic solution for Ford, Lincoln, and Mercury vehicles. It allows users to read and clear trouble codes, monitor live data, and perform key programming without a full scan tool. Access vehicle information and service bulletins for 2010 and newer models.

Read and decode VINRead and clear DTCsRead live data
💼 Business
(1.1K)
subscription
5
MECH AI: OBD2 Car Diagnostics
MECH AI: OBD2 Car Diagnostics
MECH AI: OBD2 Car Diagnostics
Mechanic in Your Pocket
Free

This AI-powered assistant helps with vehicle diagnostics, repair, and parts lookup. It provides detailed repair guides, intelligent diagnostic support, and a comprehensive parts database to save time and reduce costs.

AI-powered diagnosticsStep-by-step repair proceduresSmart parts lookup
🔧 Utilities
(103)
free with in-app purchases
6
Kohler Diagnostic System
Kohler Diagnostic System
Kohler Diagnostic System
Kohler Engine Diagnostics
Free

This application connects to a wireless interface module to help diagnose issues with EFI engines. It requires a specific hardware module to function for engine troubleshooting.

EFI engine diagnosticsWireless interface module connectivityTroubleshoot engine issues
💼 Business
(11)
free
7
MaxiAP-AP200
MaxiAP-AP200
MaxiAP-AP200
by Autel Intelligent Technology Co., Ltd.
Free

Access comprehensive OBDII functions for free, including oil resets, EPB, and SAS. Automatically identify vehicles with VIN technology and generate shareable repair reports. Expand functionality with optional in-app purchases.

All OBDII functions freeOne free vehicle softwareUp to 19 specific functions
📊 Productivity
(156)
free with in-app purchases
8
Machineseeker
Machineseeker
Machineseeker
Buy & sell used machines
Free

This app connects buyers and sellers of used machinery globally. Discover over 200,000 machines across thousands of categories, with advanced search filters and personalized notifications. Sellers can easily list their items and reach millions of international buyers.

Largest selection of used machineryAdvanced search and filteringFree to use, no registration required
📊 Productivity
(286)
free
9
FLIR Gateway App
FLIR Gateway App
FLIR Gateway App
by Extech Instruments Corporation
Free

Monitor industrial machine health with vibration and temperature sensors. Analyze real-time and historical data to detect potential issues early, preventing unplanned downtime. Receive alerts when measurements exceed critical thresholds.

Condition monitoringVibration and temperature analysisReal-time data monitoring
🔧 Utilities
(1)
free
10
TechAssist™
TechAssist™
TechAssist™
Smart trailer diagnostics
Free

This app helps technicians install, configure, and troubleshoot smart hardware on trailers and mobile assets. It provides guided workflows and real-time diagnostics for sensors like tires, brakes, and lights, ensuring proper setup and issue resolution in the field.

Associate smart gateways with trailersConfigure and verify sensorsAccess real-time sensor diagnostics
💼 Business
(9)
free
11
Ediag
Ediag
Ediag
by Shenzhen Kingbolen Electrics Technology Co., Ltd.
Free

Perform comprehensive vehicle diagnostics, including reading data flow, fault codes, and vehicle information. Generate professional diagnostic reports for major automobile manufacturers. Features one-key diagnosis and automatic VIN reading.

Full-function diagnosisRead data flowRead/clear fault code
🌟 Lifestyle
(905)
free
12
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
13
Machinery.app
Machinery.app
Machinery.app
Keep Your Machines Running
Free
🔧 Utilities
(0)
14
Directive - Maintenance App
Directive - Maintenance App
Directive - Maintenance App
Reminders for Routine Tasks
Free

This app helps you remember and manage routine maintenance tasks for important items. It provides templates, reminders, and tools to make maintenance easy to complete and track, saving you money and providing peace of mind.

Maintenance task templatesCustomizable reminders and notificationsStore task details and notes
📊 Productivity
(33)
freemium
15
HT200
HT200
HT200
by Autel Intelligent Technology Co., Ltd.
Free

Access all OBDII functions for free and get one free vehicle software with your initial purchase. This app supports up to 19 specific functions like Oil Reset and EPB, with options to expand coverage via in-app purchases. It also features auto VIN identification and generates shareable repair reports.

All OBDII functions freeOne free vehicle softwareSupports 19 specific functions
🔧 Utilities
(303)
free with in-app purchases
16
Cat® Inspect
Cat® Inspect
Cat® Inspect
by Caterpillar Inc.
Free

Streamline asset inspections with pre-defined checklists and custom forms. Capture photos, add comments, and rate equipment. Access completed inspection data via a web portal for efficient follow-up and management.

Download pre-defined inspection tasksComplete inspection formsInclude pictures and comments
💼 Business
(18)
free
17
UpdatePromise App
UpdatePromise App
UpdatePromise App
UpdatePromise App
Free

Document inspection results, capture photos and videos of items needing repair, and submit data directly to your desktop inspection form. This mobile tool extends the Digital Multi Point inspection capabilities for technicians.

Document inspection resultsCapture photos and videosSubmit data to desktop forms
💼 Business
(6)
free
18
Equipment Mobile
Equipment Mobile
Equipment Mobile
Manage John Deere equipment
Free

Manage and maintain your John Deere equipment with this app. Access operator manuals, find parts, and connect to the Operations Center for insights to improve productivity and keep equipment running smoothly.

Manage John Deere equipmentAccess Operator's ManualsFind parts by model/serial number
💼 Business
(33)
free
19
tractorpool
tractorpool
tractorpool
Farm Machinery & Tractors
Free

Discover Europe's largest marketplace for used farm machinery and tractors. Browse over 200,000 listings, contact sellers directly, and manage your own ads on the go. Find your next agricultural machine with flexible search and filtering options.

Browse 200,000+ used machinery listingsDirect seller contact within the appSave favorites to watchlist
🛍️ Shopping
(6)
ad-supported
20
Cat® Central
Cat® Central
Cat® Central
Find parts, insights & support
Free

This app provides a centralized platform for managing heavy equipment. It offers tools for finding parts, accessing manuals, diagnosing issues, and tracking machine health. Users can also connect with dealers and access support resources.

Personalized tools and service recommendationsAccess operating manuals and maintenance schedulesDiagnose fault codes
💼 Business
(3.2K)
free with in-app purchases