QR codes

A proposal from the Hangzhou government would have post-pandemic health codes assess lifestyle habits like exercising and medical checkups


Shunned in the West, the QR code underpins China’s cashless economy and coronavirus tracing efforts. Now it could be part of Apple’s new Gobi AR app.

Color-based QR codes are meant to indicate the health status of smartphone users, but it makes life difficult for people without smartphones to get around... like a fugitive on the run

Most mobile payment apps in China use QR codes -- the barcode-like square you’ve probably seen on ads and billboards. To pay, customers either scan a merchant’s code, or let the seller scan their personal codes.

We begin with an introduction to Abacus and our mission: Why we're focusing on technology in China, and how we plan to cover it.