This article originally appeared on ABACUS Congratulations for being curious! We weren’t sure if everyone would try to scan the QR code… but I’m glad you did. QR codes are everywhere in China. Unlike the one you just followed, they’re not just links; instead, they power the country’s vast mobile payment system. Everyone from supermarkets to street vendors can take payments via phones thanks to QR codes. Unlike the US, mobile payments don’t use NFC (the technology behind Apple Pay). NFC requires special hardware -- but all you need for a QR code is a camera, and every phone has one of those. That’s why 65% of China’s enormous population pays via their phone. Here at Abacus, our mission is to cover China tech for the rest of the world. That means we want to show you things that may be unfamiliar to you, like the deep importance of QR codes, give them context, and hopefully add a bit of fun, too. (Did you hear about the guy who was arrested for allegedly swapping legitimate QR codes from shops for his own, reportedly earning him almost US$150,000?) So far we’ve… Tested Razer’s new laptop/smartphone hybrid Reviewed DJI's smallest 4K-capable drone, the Mavic Air Introduced people to the country’s biggest news app Played the China-only version of PlayerUnknown’s Battlegrounds for iPhone And explained why one of the country’s biggest tech companies wants to hire grandmothers! And there's much more to come. I hope you take the time to explore Abacus and see what we’re trying to build. If you have any questions or any feedback on the site, please let me know! Just hit me up on Twitter -- I’m @ravi_hiranand ! Thank you! Ravi Executive Producer, Abacus For more insights into China tech, sign up for our tech newsletters , subscribe to our Inside China Tech podcast , and download the comprehensive 2019 China Internet Report . Also roam China Tech City , an award-winning interactive digital map at our sister site Abacus .