GeekOBD: OBD2 Car Scanner

Check engine light on? Failed your emissions test? Fuel costs rising for no reason?

GeekOBD turns your phone into a professional OBD2 diagnostic scanner. Just plug in your Bluetooth OBD adapter, connect in seconds, and get a full vehicle health report in plain English. Know exactly what's wrong, how to fix it, and how much it should cost.

Compatible with MOBD and ELM327 adapters. Works with most 1996+ OBD2-compliant vehicles.

▶ FAULT CODE DIAGNOSTICS - SAVE ON REPAIRS
• One-tap read & clear engine fault codes (DTCs)
• Deep diagnostic reports: code meaning -> symptoms -> root cause -> recommended fix
• Pending codes, permanent codes, and freeze frame data fully supported
• Cloud-based fault code monitoring with a visual timeline
• Massive fault code database with community Q&A
• Built-in OBD2 code lookup for misfire, oxygen sensor, catalyst, EVAP, and ignition coil issues

▶ SPECIALIZED INSPECTIONS - PREVENT BREAKDOWNS
• Emissions pre-inspection before annual testing or smog checks
• Battery health test for discharge, alternator output, and charging system
• Throttle carbon deposit detection to avoid unnecessary cleaning
• Sensor data cloud monitoring with anomaly alerts
• Readiness monitor status and vehicle noise monitoring
• Live data scanner for RPM, speed, coolant temperature, fuel trim, voltage, and intake pressure
• Useful for used car inspection, battery check, alternator test, and pre-trip vehicle health checks

▶ FUEL CONSUMPTION ANALYSIS - SAVE MONEY
• Real-time and average fuel consumption with cost tracking
• Fuel consumption map and aggressive driving behavior analysis

▶ TRIP RECORDING - FULL DRIVING HISTORY
• Complete sensor data logging from engine start to stop
• GPS track overlay with sensor data replay
• Trip summary: distance, duration, fuel used, and cost
• Smart anomaly alerts during driving

▶ CUSTOM DASHBOARD & HUD
• Powerful gauge editor for your own HUD heads-up display and digital dashboard
• Display speed, RPM, throttle position, coolant temp, and more
• Multiple gauge styles plus HUD mirror mode
• Drag race performance test with video and data overlay

▶ DRIVING ASSISTANT - NEXT-LEVEL EXPERIENCE
• Engine sound simulator, dash cam, navigation, and Find My Car
• Speed camera alerts, weather, fuel price, maintenance, and inspection reminders
• Keeps your scanner, trip recorder, HUD, dash cam, and maintenance reminders in one car app

▶ SMART ALERTS - VOICE BROADCAST
• Sensor-based custom alert rules with flexible trigger conditions
• Real-time voice announcements for overheating, voltage drop, speed threshold, RPM range, and abnormal sensor readings
• Design, share, and download alert schemes from the community

▶ KNOWLEDGE BASE & COMMUNITY
• Comprehensive fault code encyclopedia with symptoms, causes, and solutions
• Step-by-step repair guides and community Q&A
• Learn what a trouble code means before paying for diagnostics or workshop labor

✅ WHY CHOOSE GEEK OBD?
• Accurate OBD data you can trust
• Works with MOBD official hardware and ELM327 Bluetooth/Wi-Fi adapters
• Combines a check engine code reader, OBD2 scanner, live data monitor, fuel tracker, battery tester, and car HUD in one app

Download GeekOBD now and put a professional-grade car diagnostic scanner in your pocket!

Recent changes:
What's New
- Added support for Android 17
- Added a setting to choose the default page when the app starts
- Fixed known issues and improved app stability and user experience