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

Details

  • Released
  • Updated
  • July 27, 2023
  • September 7, 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

6.50.002

September 7, 2026

Added a preview feature for images uploaded with diagnostic reports.

Subscription plans

Monthly Auto-renewal

Monthly Auto-renewal

$19.001 Month
How to cancel TopGuru subscription ⁉️
12

In-App Purchases

$99.00

Renewal Bundle

Renewal Bundle

Charts

Top Grossing

📈 170+18

Utilities

This app rose +18 positions in Utilities chart.

Last updated on September 17, 2026.

User reviews

Scam

So they’re big selling point for this OBD reader was that it didn’t require a subscription… Now all of a sudden it’s telling me that I have three free trials before they start charging me… What a garbage business model and shltty way to treat customers…..these guys are masters of the fine print gotcha
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Great tool

It works perfectly every time I use it. I’ve used it on approx. 10 vehicles. I’m very impressed

Easy Tool

As a shop owner this app/tool has simplified our process and at a realistic cost. The tool nearly trumps my $4000 Matco scanner!

Faut payer sinon il se bloque

J’ai acheté avec un an d’abonnement et j’ai plus accès car l’abonnement est expiré alors que launch fonctionne même si l’abonnement est expiré, obligé d’acheter un abonnement je me retrouve avec une interface que je peux plus l’utiliser

Response from developer

Désolé pour ce désagrément. Si vous avez acheté un abonnement mais que vous n’arrivez toujours pas à utiliser votre appareil, merci de nous envoyer le numéro de série (SN) de votre appareil à support@topdon.com. Notre équipe vérifiera le statut de votre abonnement et vous aidera à résoudre le problème. 👍

Don’t buy

Don’t provide even basic functionality without yearly subscription. Dont buy that, save money

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.