#156 in top-grossing Utilities
🔧 Utilities
Free
In-App Purchases

Details

  • Released
  • Updated
  • July 27, 2023
  • July 2, 2026

Features

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About

Transform your phone or tablet into a powerful vehicle diagnostic tool via Bluetooth. Access full system diagnosis, OBDII functions, bi-directional controls, and essential maintenance services for a wide range of car brands. Generate detailed diagnostic reports for efficient troubleshooting.

Full System Diagnosis
Full OBD2 Functions
Bi-directional Control
8 Special Maintenance Functions
AutoVIN Vehicle Identification
Diagnostic Report Generation
Wireless Bluetooth 5.0 Connection
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What users say

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What's New in TopGuru

6.41.002

July 2, 2026

Bug fixes and performance improvements.

Subscription plans

Monthly Auto-renewal

Monthly Auto-renewal

$19.001 Month
How to cancel TopGuru subscription ⁉️
13

In-App Purchases

$99.00

Renewal Bundle

Renewal Bundle

Charts

Top Grossing

📉 156-8

Utilities

This app dropped -8 positions in Utilities chart.

Last updated on July 19, 2026.

User reviews

Constant updates make it annoying

Annoying to use because large updates and download everytime I go to use the tool

So close

As a DIYer I wish I could save my vehicle’s profile so you don’t have to scan the vin everytime. Unless there is some other way of doing it you have to back all the way out to the main menu to watch recorded data, then if you go back in and rescan the vin (even though it wasn’t even removed from the port) and flip though a bunch of other menus to go to other tests.

It really slows down and frustrates you going from live data (which is buried to deep in the interface) to the main menu and back again.
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Device bound

I bought this a while ago. Love it. Except I’ve had a problem with the vci not connecting it says it bound to my email which yes it should be, and yet when I hit activate that’s all it tell me. I am
Signed up for the yearly subscription and I can even use it. I’ve messaged your help department nothing. I would just like to use my scan tool. Please any help is appreciated.
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Great utility

Works great

Response from developer

Thank you for your good review! We're happy that our products have been helpful to you. If you ever have suggestions or need assistance, don't hesitate to reach out at support@topdon.com.

Updates

Works well when it works, but every time I seem to get this out to read a code there’s updates that make it a much longer process than it needs to be. Makes me miss my wired OBD2 scanner that I could just plug in and it would read the code

Developer apps

User experience

🐞

Reported Bugs

3 issues

Incompatibility with certain vehicle models

Bug

Login and account issues

Bug

Unreliable Bluetooth connectivity

Bug

Requested Features

3 requests

iPad optimization and full-screen support

Feature

Expanded vehicle coverage, especially for motorcycles

Feature

Ability to save and export diagnostic data

Feature

FAQ

What does this app do?

This app transforms your phone or tablet into a smart diagnostic tool by connecting to your vehicle via Bluetooth. It provides comprehensive features for vehicle diagnosis, including full system scans, OBDII functionality, bi-directional controls, and various maintenance services.

What are the key features of this diagnostic app?

Key features include full system diagnosis for numerous vehicle modules, all 10 modes of OBD2 testing, bi-directional control for active tests, eight special maintenance functions like Oil Reset and EPB Reset, AutoVIN for quick identification, and the ability to generate detailed diagnostic reports.

Is this app free to use?

The app offers core OBD2 functions for free for life. However, advanced features, including additional reset functions and IMMO capabilities found in the Pro version, are available through in-app purchases.

What vehicles are compatible with this app?

The app supports over 60 vehicle brands, making it a versatile auto scanner. It connects to your phone or tablet using Bluetooth 5.0, offering a wireless connection range of up to 33 feet (10 meters).

What are common use cases for this app?

Common use cases include diagnosing engine, transmission, ABS, and airbag issues, performing routine maintenance like oil resets and throttle adaptations, identifying fault codes, and generating detailed reports for technicians or car owners to understand vehicle health.