DND
Free
1.5.5for iPhone
Age Rating
DND Screenshots
About DND
DND is a professional vehicle diagnostic tool that provides comprehensive services such as OBD functionality, enhanced diagnosis, and vehicle maintenance, saving users time and money.
It allows you to easily check the health status of your vehicle without having to go to a repair shop, quickly locate the cause of vehicle malfunctions, and provide users with comprehensive application services such as AI services and abnormal warnings.
Get to know your vehicle better
Become more knowledgeable about your vehicle and take good care of it. Gain greater confidence and peace of mind with Echo diagnostic tool and DND App in your pocket.
Diagnose and repair with DND
Discover why the Check Engine Light is on, provide maintenance guidance and reset the Diagnostic Trouble Codes. Save time and money by diagnosing the root cause without visiting a mechanic.
Easily used even for beginners
You can easily have professional repair and maintenance knowledge with intelligent by services, it can be easily used even for beginners.
Monitor real-time sensor data
Maintain the health of the your vehicle by monitoring the engine and various systems in real-time. Improve efficiency and prevent malfunctions.
It allows you to easily check the health status of your vehicle without having to go to a repair shop, quickly locate the cause of vehicle malfunctions, and provide users with comprehensive application services such as AI services and abnormal warnings.
Get to know your vehicle better
Become more knowledgeable about your vehicle and take good care of it. Gain greater confidence and peace of mind with Echo diagnostic tool and DND App in your pocket.
Diagnose and repair with DND
Discover why the Check Engine Light is on, provide maintenance guidance and reset the Diagnostic Trouble Codes. Save time and money by diagnosing the root cause without visiting a mechanic.
Easily used even for beginners
You can easily have professional repair and maintenance knowledge with intelligent by services, it can be easily used even for beginners.
Monitor real-time sensor data
Maintain the health of the your vehicle by monitoring the engine and various systems in real-time. Improve efficiency and prevent malfunctions.
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What's New in the Latest Version 1.5.5
Last updated on Oct 29, 2025
Old Versions
New Requirements:
1. Added device connection instructions
2. Added IM readiness status indicator
3. Added AI conversation assistant access diagnosis
Optimizations:
1. Comprehensively adjusted the core diagnostic process for smoother operation and faster response.
2. Optimized the visual design and interaction logic of the function center
3. Adjusted the interface style of the PDF file list
Bug Fixes:
1. Fixed some known issues
1. Added device connection instructions
2. Added IM readiness status indicator
3. Added AI conversation assistant access diagnosis
Optimizations:
1. Comprehensively adjusted the core diagnostic process for smoother operation and faster response.
2. Optimized the visual design and interaction logic of the function center
3. Adjusted the interface style of the PDF file list
Bug Fixes:
1. Fixed some known issues
Show More
Version History
1.5.5
Oct 29, 2025
New Requirements:
1. Added device connection instructions
2. Added IM readiness status indicator
3. Added AI conversation assistant access diagnosis
Optimizations:
1. Comprehensively adjusted the core diagnostic process for smoother operation and faster response.
2. Optimized the visual design and interaction logic of the function center
3. Adjusted the interface style of the PDF file list
Bug Fixes:
1. Fixed some known issues
1. Added device connection instructions
2. Added IM readiness status indicator
3. Added AI conversation assistant access diagnosis
Optimizations:
1. Comprehensively adjusted the core diagnostic process for smoother operation and faster response.
2. Optimized the visual design and interaction logic of the function center
3. Adjusted the interface style of the PDF file list
Bug Fixes:
1. Fixed some known issues
DND FAQ
Click here to learn how to download DND in restricted country or region.
Check the following list to see the minimum requirements of DND.
iPhone
