The Service NSW app used to trace Covid-19 through QR codes is experiencing a service shortage, prompting outrage from business owners.

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 ...

The NSW Government is considering making the Service NSW smartphone application mandatory for businesses that need to collect visitor data to allow for COVID-19 contact tracing.

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.

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.