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

Details

Released
July 27, 2023
Updated
September 28, 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 about TopGuru

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What's New in TopGuru

6.55.001

September 28, 2026

Update for FORD/GM/CHRYSLER/TOYOTA/BENZ/SMART/SPRINTER/LANDROVER/PEUGEOT/RENAULT/EOBD.

13

Subscriptions & In-App Purchases

Monthly Auto-renewal

Monthly Auto-renewal

$19.001 Month
How to cancel TopGuru subscription ⁉️

Charts

Top Grossing

📉 152-5

Utilities

This app dropped -5 positions in Utilities chart.

Last updated on October 28, 2026.

User reviews

Works perfectly

Bit tricky understanding some procedural steps in certain diagnostics but ultimately I find my way. the tool works perfectly. Could not fix my Mitsubishi without it, Others had failed to enter specific areas of diagnostics and coding, this did not.
Thxs TOPDON

SUBSCRIPTION NOW

I hate how everything is moving to subscription based services now even for the most basic things this company was built on not having a subscription service i mainly used it for reading and deleting codes and operating some switches and sensors during diag

alright

when it does work its useful, but majority of the time it refuses to connect slowing me down and the updates are annoying. sometimes it will just disconnect in the middle of a diagnosis

17 Altima Bricked

Unfortunately using this machine resulted in a BRICKED BCM on a 17 Altima attempting to make a spare key. I’m waiting for customer support to respond, if they’re able to assist in some meaningful way like direct me to being able to restore this BCM I will change the rating.

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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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.