Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

I am an author and features writer at Android Police. I primarily writes guides, how-tos, and roundups on the latest smartphone apps and features for Android Police since joining the team in early ...