A code reader for your car can mean the difference between dropping everything and heading for the mechanic and letting that warning light ride a little bit.

Imagine quickly diagnosing why your car's check engine light is on. A scan tool, also known as a trouble code reader, can help you identify the problem yourself.

QR Code No Ads, as the name implies, is ad free. QR Droid is a QR code scanner app specific to Android devices, while QR Reader for iPhone is for iPhone users.

Android 13 Developer Preview 2 is out with a new QR Code reader. Here's how it work on your Google Pixel with Android 13.