QR codes — or "Quick Response" codes — are square-shaped barcodes that can be scanned by mobile devices. They are used for a variety of applications, from pulling up a restaurant menu to directing ...

The QR code is having an extended moment, given that we’re all still wary of dealing with physical documents, touching surfaces, and generally interacting with the world at large. The switch to ...

WhatsApp does not use usernames, which makes it difficult for someone to share and discover profiles on WhatsApp. While there are different methods to find someone on WhatsApp, a direct link to the ...