Kaiju AI Car Mechanic & OBD2

Your AI car mechanic: diagnose issues, track maintenance, and know your car. Get plain-language answers about your specific vehicle, read your car's diagnostic codes, watch live engine data, track every service, and turn receipts into organized records with a scan.

And when that check engine light does come on? Get a plain-language first read for your vehicle — what the code means, how urgent it looks, and what to check next. Confirm with a mechanic before you clear it.


--- WHAT KAIJU MECHANIC DOES ---

Connect an ELM327 OBD-II adapter (Bluetooth or Wi-Fi, widely available online and at auto parts stores) and Kaiju Mechanic reads your car's diagnostic codes directly. No OBD adapter? No problem — you can still use AI chat, log maintenance, scan documents, and manage your garage without any hardware.

• Check engine light decoder — Connect an OBD-II adapter and read the actual trouble codes. Already have a code like P0420 or P0301? Type it in — no adapter needed. The AI explains what each code means for your specific vehicle, how urgent it is, and what the typical repair involves. Fixed the problem? Clear the code and turn the light off right from the app.

• AI mechanic chat — Ask anything about your car and get a real, vehicle-specific answer. Not generic advice. Kaiju Mechanic knows your make, model, year, and service history. Rough idle, strange noise, hard starts? Describe the symptom and the AI helps you narrow down likely causes.

• Live sensor data — When connected via OBD-II, view real-time readings from your engine: RPM, coolant temperature, throttle position, oxygen sensors, battery voltage, and more.

• Tune & flash history — We record your ECU's firmware signature on your first scan, then flag any change on later scans: an aftermarket tune, a dealer reflash, or a TSB update (OBD-II adapter; Premium forensic features).

• Maintenance tracking — Log every oil change, brake job, and fluid flush, and see what is due next. Personalized AI schedules are a Premium feature.

• Document scanning — Photograph your repair invoices and service receipts. AI reads them and automatically extracts the service date, mileage, and what was done.

• Vehicle garage — Add multiple vehicles and switch between them instantly. Each vehicle has its own complete history.

• Modification log — Track upgrades, aftermarket parts, and tuning changes alongside your factory service history.


--- FREE — NO CATCH ---

Every account starts free. No credit card. No trial period.

- 1 vehicle in your garage
- 15 AI credits per month (chat, diagnostics, document scanning, and more)
- Full maintenance history logging with unlimited service records
- OBD-II adapter connectivity (Bluetooth or Wi-Fi) for diagnostic code reading
- 500 MB of cloud storage, synced across devices
- Registered free users can buy AI credit packs anytime (list price)


--- PREMIUM — $8.99/MONTH OR $79.99/YEAR ---

26% off when you pay annually — about three months free. For DIY owners, enthusiasts, collectors, and multi-car households who want the full AI experience.

- 300 AI credits per month (advanced diagnostics, document analysis, and every other AI feature)
- Unlimited vehicles
- 5 GB cloud storage with backup and sync
- 20% member discount on AI credit packs
- Premium forensic tools (including Mode 09 CVN / tune-history intelligence)


--- CONNECT YOUR OBD-II ADAPTER ---

Kaiju Mechanic works with standard ELM327 adapters. Plug into the OBD-II port under your dashboard (standard on virtually all vehicles built after 1996) and connect from inside the app — Bluetooth adapters appear in the in-app scan, and Wi-Fi adapters have their own guided setup.

Compatible with: ELM327 OBD-II adapters over Bluetooth Classic, Bluetooth LE, or Wi-Fi
Requires: Android 7.0 or later. Bluetooth is only needed for Bluetooth adapters; Wi-Fi adapters connect over Wi-Fi.

Download free. Start diagnosing today.