How to Scan a Lot Number Using a Bar Code Scanner. Bar code scanning is an easy way to track your business inventory or even keep tabs on office supplies. Many bar codes contain a lot number.

You can scan a barcode with your iPhone by using a third-party app. Currently, there are no built-in apps that can read barcodes.

TECH How to scan a QR code with your iPhone or Android phone (no apps needed) QR codes are those pixelated squares you see in restaurants, advertisements, stores, food packaging, business cards ...

QR codes can house a whole lot of data, from the URL of a webpage or service, to where to directly download an app. Here's how to scan them.

There are three different ways to scan QR codes on your iPhone, each with its own advantages. Here's how to use them and why you might want to pick one over the others.

Some developers would lead you to believe you need to download their app to scan QR codes. Spoiler: Your phone can do that with built-in features.