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Best Ediag Plus Apps

249+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated July 2026

Whether you're new to ediag plus or looking for an upgrade, our curated collection of 249+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Ediag Plus Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1EdiagEdiagFree4.3★ (905)NoNoAug 2026
2ThinkDiag+ThinkDiag+Free4.5★ (4K)NoNoAug 2026
3BlueDriver OBD2 Scan ToolBlueDriver OBD2 Scan ToolFree4.6★ (14K)NoNoAug 2026
4Autmet | OBD2 ScannerAutmet | OBD2 ScannerFree5.0★ (1)NoNoAug 2026
5Mobilscan OBDMobilscan OBDFree1.5★ (2)NoNoMay 2026
6OBD PlusOBD PlusFree3.3★ (4)NoNoMay 2026
7Auto AgentAuto AgentFree4.9★ (34K)NoYesAug 2026
8OBD2 Test (Potenza Drive)OBD2 Test (Potenza Drive)Free—YesNoJul 2026

Top Picks for Ediag Plus

Ediag#1

Ediag by Shenzhen Kingbolen Electrics Technology Co., Ltd.

Editor's Choice
🌟 Lifestyle
4.3😐(905 ratings)
Free
Ediag screenshot 1

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.

What We Love

  • ✅ Comprehensive diagnostic information and functionality
  • 🎯 Works well for specific vehicle models (Chevy, Acura, etc.)
  • 💪 Advanced features like glow plug programming and ECU coding
  • 📱 Helpful AI and YouTube integration for guidance

Room to Improve

  • 💰 Hidden subscription fees for special functions ($19.99 each)
  • 🐛 App crashes frequently after updates
  • ❌ Poor vehicle compatibility with newer models (2023+)
ThinkDiag+#2

ThinkDiag+ by THINKCAR INC

Strong Contender
🔧 Utilities
4.5😊(4K ratings)
Free
ThinkDiag+ screenshot 1
ThinkDiag+ screenshot 2
ThinkDiag+ screenshot 3
ThinkDiag+ screenshot 4
ThinkDiag+ screenshot 5

This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.

What We Love

  • 🚀 Easy to use
  • 🚀 Powerful diagnostic capabilities
  • 🚀 Affordable price
  • 🚀 Helpful customer support

Room to Improve

  • 🐛 Occasional crashes or freezes
  • 🐛 Compatibility issues with certain vehicles
  • 🔒 Concerns about annual subscription fees
BlueDriver OBD2 Scan Tool#3

BlueDriver OBD2 Scan Tool by Lemur Vehicle Monitors

Fear No Fix™
Worth Considering
📊 Productivity
4.6😊(14K ratings)
Free
BlueDriver OBD2 Scan Tool screenshot 1
BlueDriver OBD2 Scan Tool screenshot 2
BlueDriver OBD2 Scan Tool screenshot 3
BlueDriver OBD2 Scan Tool screenshot 4
BlueDriver OBD2 Scan Tool screenshot 5

This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.

What We Love

  • 👍 Easy to use
  • 🚀 Excellent diagnostic capabilities
  • 💰 Great value for money
  • 🔍 Detailed fault code information

Room to Improve

  • 🐛 Occasional Bluetooth connectivity issues
  • ⚠️ Limited support for some vehicle makes/models
  • 🚫 Cannot read odometer information

More Ediag Plus apps to explore

4
Autmet | OBD2 Scanner
Autmet | OBD2 Scanner
Autmet | OBD2 Scanner
by SPIRESH TECH INC.
Free

This diagnostic tool connects to your vehicle's OBD data via a Bluetooth device. It allows you to read various ECU data and supports common OBD-II protocols.

Reads vehicle ECU dataBluetooth OBD device compatibleSupports OBD-II protocols
🔧 Utilities
(1)
free
5
Mobilscan OBD
Mobilscan OBD
Mobilscan OBD
by Mobilscan
Free

This app connects to your vehicle's OBD system via a WiFi adapter to display sensor data and diagnostic trouble codes. It includes a simulator for testing functionality without a physical connection.

Retrieves sensor valuesDisplays fault codesOBD WiFi adapter communication
🔧 Utilities
(2)
free
6
OBD Plus
OBD Plus
OBD Plus
by ShenzhenDaCheng software co., LTD
Free

Monitor your vehicle's engine, emissions, and other critical systems. This app aids in diagnosing car issues and provides insights into various components for better car maintenance.

Vehicle condition monitoringCar diagnosticsEngine system monitoring
🔧 Utilities
(4)
free
7
Auto Agent
Auto Agent
Auto Agent
by EZ LYNK
Free

Monitor, diagnose, and update your vehicle's software remotely. This powerful tool allows you to view live data, read and clear diagnostic codes, and record data for your technician. Connect directly with your mechanic for remote assistance and software updates, saving you trips to the repair shop.

Display live vehicle dataRead and clear diagnostic trouble codesCreate and playback data recordings
🔧 Utilities
(34K)
free with in-app purchases
8
OBD2 Test (Potenza Drive)
OBD2 Test (Potenza Drive)
OBD2 Test (Potenza Drive)
Test your OBD2 adapter
Free
🎬 Entertainment
(0)
9
OBD Home
OBD Home
OBD Home
Support V011 series products.
Free

This application connects to your vehicle via Bluetooth to provide diagnostic and monitoring functions. It allows for fault code reading and clearing, performance testing, and travel analysis, offering a comprehensive view of your car's health and driving habits.

Fault code reading and clearingInstrument panel monitoringPerformance testing
🔧 Utilities
(48)
free
10
ChkOBD OBD2 Analyzer
ChkOBD OBD2 Analyzer
ChkOBD OBD2 Analyzer
A good diagnostic of your car
Free

Connect your iPhone or iPad to your car's engine to view vital data. Access basic engine values for free, with in-app purchases for advanced diagnostics, smog check readiness, VIN analysis, and error decoding.

View engine valuesIn-app purchase for advanced dataSmog Check Assistant
🔧 Utilities
(4)
free with in-app purchases
11
Carly — OBD2 car scanner
Carly — OBD2 car scanner
Carly — OBD2 car scanner
Diagnose, Code and Service
Free

This app allows car owners to diagnose issues, monitor live engine data, and perform maintenance tasks. It offers advanced features like coding hidden car functions and detecting mileage manipulation, helping users save on repairs and understand their vehicle's health.

Read and clear fault codes from all ECUsMonitor engine live data parametersStep-by-step car repair guides
📊 Productivity
(9.8K)
free with in-app purchases
12
INNOOBD+
INNOOBD+
INNOOBD+
OBD Tool
Free
🔧 Utilities
(0)
13
GWSMARTBT
GWSMARTBT
GWSMARTBT
by Apex Tool Group
Free

This diagnostic tool offers advanced vehicle system scanning and bidirectional control for automotive technicians. It provides 23 professional reset functions and live data mapping, eliminating the need for expensive alternatives. Enjoy comprehensive coverage, a 2-year warranty, and free lifetime software updates.

Full system diagnosticsBidirectional programming23 pro reset functions
🔧 Utilities
(52)
paid
14
hobDrive
hobDrive
hobDrive
by RID OOO
Free

This intelligent trip computer and OBD2 diagnostic software uses your vehicle adapter and GPS to calculate trip information, monitor engine diagnostics, and track performance metrics. It offers detailed fuel efficiency calculations and trip planning features for a comprehensive driving analysis.

OBD2 PIDs and custom sensor supportEnhanced engine diagnostics and code explanationDetailed trip computer with MPG calculations
🔧 Utilities
(0)
free with in-app purchases
15
OBDAI OBD2 Scanner & ELM327 AI
OBDAI OBD2 Scanner & ELM327 AI
OBDAI OBD2 Scanner & ELM327 AI
AI Mechanic + Repair Videos
Free

This app uses AI to diagnose car issues, providing detailed reports and repair guidance. It offers real-time scanning, visual code reading, and predictive maintenance insights. Access embedded repair videos and component location photos for guided troubleshooting.

AI-powered car diagnosticsProfessional diagnostic reportsVisual code reader with repair videos
📊 Productivity
(12)
free with in-app purchases
16
OBDGO PRO
OBDGO PRO
OBDGO PRO
by OBD GO TECH CO LTD
Free

Unlock hidden vehicle features and perform OBD-II diagnostics with this app. It allows you to activate functionalities like wireless CarPlay, disable start-stop systems, and scan/clear trouble codes. Generate detailed diagnostic reports to understand and repair your car.

Unlock hidden vehicle featuresOBD-II code scanning and clearingGenerate and share diagnosis reports
🔧 Utilities
(25)
free
17
UJS OBD Pro
UJS OBD Pro
UJS OBD Pro
OBD
Free
🔧 Utilities
(0)
18
Troodon OBD
Troodon OBD
Troodon OBD
by DevCom spol. s r.o.
Free
🔧 Utilities
(0)
19
UJS OBDII
UJS OBDII
UJS OBDII
OBD Tool
Free

This professional car diagnostic app connects to UJS OBDII devices via Bluetooth to read and clear fault codes, monitor real-time vehicle performance, and analyze travel data. It supports multiple languages and offers high-speed, low-power data transmission.

Fault code reading and clearingReal-time instrument panel displayVehicle performance testing
🔧 Utilities
(1)
free
20
Mucar
Mucar
Mucar
by THINKCAR INC
Free

Access professional-level automotive diagnostic functions, including reading and clearing fault codes, viewing live data, and performing special tests. Supports a wide range of vehicle manufacturers and offers a community forum for users to share insights and get support.

OE-level professional functionsFull OBD II diagnosisMaintenance light reset
🔧 Utilities
(277)
free

FAQ about Ediag Plus

What are the best ediag plus apps for iPhone?
Ediag tops our ediag plus apps ranking as of July 2026, with a 4.3-star average from 905 App Store ratings, and it's free to download.
Yes — 20 of the top ediag plus apps we rank are free to download, including Ediag and ThinkDiag+.
Ediag has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 249+ ediag plus apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides full-function vehicle diagnostics. It allows you to read data flow, clear fault codes, and retrieve vehicle information. It supports a wide range of automobile manufacturers.
Key features include full-function diagnosis, reading live data, clearing fault codes, and accessing vehicle information. It also offers one-key diagnosis, automatic VIN reading, and the ability to generate professional diagnostic reports.