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Questions about OBD Log
Straight answers about compatibility, adapters, AI, plans and privacy.
- Is my car compatible?
Any make and model with OBD2. The app tries the protocols and remembers the one that worked. Cars from 1999 to 2001 may use slow protocols and report little data.
- Which adapter do I use?
A Bluetooth or Wi-Fi OBD2 adapter. Prefer a reference adapter: the ones sold on the market may or may not be able to read the data of certain vehicles. In the future, the OBD Log Core.
- Does it work on iPhone?
Android only for now (8.0 or later).
- I have a standalone ECU. Does it work?
Speeduino and MegaSquirt (MS2/Extra, MS3) yes; rusEFI is experimental. How the app will talk to ECUs that broadcast only over CAN is still being planned.
Use
Day to day
What the app does with the car, with the internet and with whoever else drives.
See the app page- Does OBD Log change anything in my car?
No. It only reads. It sends no actuator tests, adaptations or programming.
- Does it work without internet?
Yes. Readings stay on the phone and upload when the connection is back.
- Can I share the car with my family?
Yes, with an invite code. Trips belong to the car, with the name of who drove.
- Does the AI replace a mechanic?
No. It points out signs based on the data and shows the evidence. If you suspect something, see a mechanic.
- Which AIs work?
Claude, Cursor, VS Code and Gemini, and others that speak MCP.
Plans and data
Plans, store and your data
What it costs, where to download it and who sees what your car records.
See the Beta page- Do I have to pay?
There is a free plan (15 days of history). PRO (60 days) will be a monthly subscription on Google Play, or included when you link an OBD Log Core or Trace.
- When will it be on Google Play?
The app is under review. Soon. Until then, download the app from the Beta page.
- Who sees my data?
Only you and the people you invited to the vehicle. You can download a copy and delete the account from the app.
Read the Privacy Policy
Hardware and company
Hardware and who makes it
About the Core, the Trace and the company behind OBD Log.
See the hardware page- When will the Core and the Trace be sold?
They are in development, with no date yet.
- Who makes OBD Log?
JohnJohn 3D LTDA, a Brazilian company.
Want to see this on your car?
OBD Log is in Beta. Download the app and try it before everyone else.