OBD Apps · Legal

Support — Smog Predict, Used Car Check & OBD Cockpit

Email tourguidllc@gmail.com. If you have your receipt number, include it, along with your device (iPhone, Android or web) and the app’s name.

Getting started

  1. Open the app. The first time on each device, you activate it:
    • enter your name and email address and check the box;
    • copy the 6-digit authorization number we email you into the app.
  2. Plug an OBD-II adapter into the car’s diagnostic port, usually under the dashboard near the steering column. Turn the ignition on, then tap Connect Adapter.
  3. No adapter yet? The app’s Connect Adapter screen shows which kind works with your device and where to buy one.

Which adapter works?

Your deviceWorks with
iPhone / iPadBluetooth LE (“BLE”, “Bluetooth 4.0”) or Wi-Fi adapters
AndroidBluetooth LE, classic Bluetooth or Wi-Fi adapters
Computer (Chrome / Edge)Bluetooth LE or USB cable adapters

Classic-Bluetooth ELM327 adapters do not work with iPhone.

Common questions

I didn’t get the authorization email.

The app asks me to activate again. This happens after reinstalling, clearing the app’s data, using a new device, or when the User Agreement changes.

The app can’t find my adapter.

Is this an official smog check? No. Smog Predict is a readiness pre-check, not an official inspection, and Used Car Check does not replace a mechanic’s inspection or a vehicle-history report. See the User Agreement.

Privacy and your data

Opting out of arbitration

To opt out of arbitration (User Agreement, Section 12.5), email tourguidllc@gmail.com within 30 days of first accepting the Agreement. Give your name, your email address, and a clear statement that you opt out of arbitration.