OBDAssistant AI - OBD2 Scanner

OBD2assistant

In-app purchases

About this app

AI OBD2 Scanner & Smart Car Diagnostics
Fix your car smarter with OBDAssistant — the AI OBD2 scanner built for DIY drivers and mechanics.
OBDAssistant transforms your phone into a professional car diagnostics tool that connects to any ELM327 Bluetooth OBD2 adapter. Built by a professional mobile mechanic, the app doesn't just read fault codes — it explains the repair in plain English so you can save money and avoid unnecessary shop visits.
Whether you're diagnosing a check engine light, monitoring live engine data, or preparing for an inspection, OBDAssistant gives you the AI-powered insight you need to understand your vehicle.
AI-Powered Car Diagnostics
Read & Clear OBD2 Codes
Scan all OBD-II codes (P, C, U, B) and understand what they actually mean.
AI Fault Code Explainer
We translate cryptic codes like P0420 or P0171 into clear guidance such as:
“Your oxygen sensor may be reading lean — check for vacuum leaks first.”
Repair Guidance & Videos
Watch curated repair videos and learn how to fix common issues directly in the app.
Severity Warnings
Know whether your car is safe to drive or if immediate repair is needed.
Live Engine Data & Performance Tools
Real-Time Engine Monitoring
Track 50+ live parameters including:
RPM
Boost pressure
Air-fuel ratio (AFR)
Fuel trims
Mass airflow (MAF)
Coolant temperature
Fast Data Refresh
Smooth gauges with high-speed refresh rates for accurate readings.
Custom Dashboards
Create your own layout with gauges, charts, and digital displays.
Dyno & Performance Testing
Wheel horsepower estimation
Torque estimates
0-60 testing
1/4 mile performance timers
Smart Service Log & Maintenance Tracking
AI Service History Import
Scan invoices with OCR to automatically track repairs and costs.
Predictive Maintenance Alerts
Detect patterns in vehicle data to warn about potential issues early.
Maintenance Reminders
Track:
Oil changes
Tire rotations
Registration / inspection
WOF / MOT deadlines
Vehicle Inspection Tools
Check vehicle health before buying or selling.
Use your phone sensors to evaluate brake performance and suspension behaviour.
Vehicle & Adapter Compatibility
Works with most ELM327 Bluetooth OBD2 adapters, including:
Veepeak
KONNWEI
BAFX
OBDLink
Most generic ELM327 v1.5 / v2.1 devices
Supports OBD2 petrol, diesel and hybrid vehicles from 1996 onward using:
CAN (ISO-15765)
J1850
KWP protocols
Privacy First
✔ No accounts required
✔ No tracking
✔ Your vehicle data stays on your device
Quick Start
Plug your OBD2 adapter into your vehicle
Pair the adapter via Bluetooth
Open OBDAssistant and tap Connect
Stop overpaying for simple repairs.
Download your AI OBD2 scanner today.

OBD2 scanner,AI car diagnostics, check engine light, ELM327 reader, fault code reader, live engine data, car scanner, vehicle diagnostics, DIY mechanic, repair guide, dyno test, fuel trims, OBD2 app, smart car diagnostics

Ratings and reviews

Absolutely wonderful and the price is just to good to pass up. Im a hands on type of guy but not very clued up when it comes to cars and this totally bridges that gap, someone could even use this to help them through the process of getting qualified its that good. Try it out seriously and youll be pleasantly surprised how good this actually is. Thanks OBDassistant now my car worries are that much simpler.

Awesome best one yet. Im not a mechanic but the AI tells me the issue, how to fix it and what parts etc. 👍 It's a really great app I highly recommend it.

It's a really cool app. AI is a help everywhere, and here too, brilliant! Love the dyno feature too

What’s new

What’s new

Improved onboarding and trial flow for a clearer start-to-value experience.
Updated paywall messaging and feature comparison to better explain benefits.
Fixes

General stability and performance improvements.
Minor UI/UX refinements across key screens.
Notes

This release includes under-the-hood improvements to support smoother future updates.