
Free
In-App Purchases
Rating summary
About
Dr. Underhood turns your phone into a smart car-diagnostic tool. Pair an approved Bluetooth OBD-II adapter, scan your vehicle in seconds, and get a clear, plain-English explanation of what's wrong — no mechanic jargon.
WHAT YOU CAN DO
• Read and clear check-engine codes over Bluetooth (ELM327 OBD-II)
• Get an AI-powered diagnosis that explains the problem in plain English
• See likely causes, severity, and what to do next
• Share your scan directly with a trusted repair shop
• Book an appointment and get a case summary from the shop
WHY DRIVERS LOVE IT
• No guessing at the auto-parts store
• Understand repairs before you pay for them
• Faster, more transparent communication with your shop
Note: Requires a compatible Bluetooth OBD-II adapter (sold separately). The app will guide you to an approved adapter.
Dr. Underhood is built for everyday drivers who want to understand their car and avoid surprise repair bills.
Show more
What's New in Dr Underhood Live Assist
1.0.18
October 12, 2026
Fixed OBD-II code reading — now correctly catches misfires and all trouble codes from the dongle • More stable connection to the Wrench-1 dongle • Dashboard and sign-in fixes for shop staff • Speed and stability improvements
More2
Subscriptions & In-App Purchases
$19.99
Basic Diagnosis Unlock
Unlocks one full AI vehicle diagnosis.






