CoreOBD: Car Diagnostics
Contains adsIn-app purchases
Everyone
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About this app
CoreOBD turns your phone into a clear, honest OBD2 scanner. Plug an ELM327 adapter into your car's diagnostic port, connect over Wi-Fi or Bluetooth, and see exactly what your engine is doing — in real time, in your language. No account, no sign-up, and your vehicle data never leaves your device.
🔌 CONNECT YOUR WAY
• Works with common Wi-Fi and Bluetooth ELM327 adapters.
• Auto-finds your Wi-Fi adapter on the network, or set the host and port yourself.
• No adapter handy? Demo mode simulates a car so you can explore every screen.
📊 LIVE ENGINE DATA
• Watch a customizable dashboard of gauges: engine speed, vehicle speed, coolant, throttle, load, oil temp and more.
• Add, remove and reorder gauges by dragging — build the layout you want.
• Smooth animated needles, or snap-instant mode to save battery on slower phones.
🛠️ FAULT CODES
• Read stored, pending and permanent diagnostic trouble codes.
• Fault-code descriptions are localized in 7 languages — read what a code means in your own language.
• Check the freeze-frame snapshot captured when a fault triggered.
• Review readiness monitors and clear codes to turn off the check-engine lamp (Pro).
🚗 YOUR GARAGE
• Every car you connect to is saved automatically — VIN, protocol, control module, sensors and fault history.
• Add a photo and edit make, model and year for each vehicle.
• Export a full vehicle sheet to PDF or CSV and share it with your mechanic.
🎬 RECORD & GRAPH (PRO)
• Record a live session and plot any sensor over time.
• Automatically capture a snapshot around faults that appear while recording.
• Export recordings for later analysis.
🔒 YOUR DATA STAYS YOURS
Everything your car reports is processed on your device and shown only to you — it is not sent to us or anyone else, and it isn't kept after you disconnect. CoreOBD only reads standard OBD2 data; it never modifies or reprograms your vehicle. The app needs internet permission to talk to Wi-Fi adapters and to show ads in the free version; it does not request location or track you.
✨ FREE & PRO
Free includes live data with the core sensors, full fault-code reading, your saved garage, and PDF/CSV export. CoreOBD Pro is a one-time purchase — yours forever — that unlocks every sensor on the dashboard, clearing fault codes, session recording with graphs and data export, and removes all ads.
Note: an external OBD-II ELM327 adapter (Wi-Fi or Bluetooth) is required — it is not included.
Drive informed. 🚗
🔌 CONNECT YOUR WAY
• Works with common Wi-Fi and Bluetooth ELM327 adapters.
• Auto-finds your Wi-Fi adapter on the network, or set the host and port yourself.
• No adapter handy? Demo mode simulates a car so you can explore every screen.
📊 LIVE ENGINE DATA
• Watch a customizable dashboard of gauges: engine speed, vehicle speed, coolant, throttle, load, oil temp and more.
• Add, remove and reorder gauges by dragging — build the layout you want.
• Smooth animated needles, or snap-instant mode to save battery on slower phones.
🛠️ FAULT CODES
• Read stored, pending and permanent diagnostic trouble codes.
• Fault-code descriptions are localized in 7 languages — read what a code means in your own language.
• Check the freeze-frame snapshot captured when a fault triggered.
• Review readiness monitors and clear codes to turn off the check-engine lamp (Pro).
🚗 YOUR GARAGE
• Every car you connect to is saved automatically — VIN, protocol, control module, sensors and fault history.
• Add a photo and edit make, model and year for each vehicle.
• Export a full vehicle sheet to PDF or CSV and share it with your mechanic.
🎬 RECORD & GRAPH (PRO)
• Record a live session and plot any sensor over time.
• Automatically capture a snapshot around faults that appear while recording.
• Export recordings for later analysis.
🔒 YOUR DATA STAYS YOURS
Everything your car reports is processed on your device and shown only to you — it is not sent to us or anyone else, and it isn't kept after you disconnect. CoreOBD only reads standard OBD2 data; it never modifies or reprograms your vehicle. The app needs internet permission to talk to Wi-Fi adapters and to show ads in the free version; it does not request location or track you.
✨ FREE & PRO
Free includes live data with the core sensors, full fault-code reading, your saved garage, and PDF/CSV export. CoreOBD Pro is a one-time purchase — yours forever — that unlocks every sensor on the dashboard, clearing fault codes, session recording with graphs and data export, and removes all ads.
Note: an external OBD-II ELM327 adapter (Wi-Fi or Bluetooth) is required — it is not included.
Drive informed. 🚗
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
Welcome to CoreOBD! Connect an ELM327 adapter and diagnose your car live:
- Live dashboard with customizable gauges
- Read and clear fault codes with plain-language descriptions
- Readiness monitors and freeze-frame data
- Trip recording with PDF/CSV export
- Live dashboard with customizable gauges
- Read and clear fault codes with plain-language descriptions
- Readiness monitors and freeze-frame data
- Trip recording with PDF/CSV export
App support
About the developer
Julian Port
julian95port@gmail.com
Rhönstraße 40
63110 Rodgau
Germany