Here in Sweden they are used for mobile payments
Ask HN: What's been the best usage for QR code apart from restaurants menus?
21–30 of 31 posts
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#22I've made a tool to back up my important files on paper using QR codes and erasure coding: https://gitlab.com/thexa4/ocrbackup
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#23Here in Sweden they are used for mobile payments https://en.m.wikipedia.org/wiki/Swish_(payment)
It’s also used for authentication, e.g. when I log in to my bank.
https://www.bankid.com/utvecklare/guider/teknisk-integration...
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#24It’s going to be pretty useful once those AR glasses become ubiquitous.
useful or horrific. Suddenly just glancing in a random direction could result in your being tracked, or generate pop-up ads. Amazing tech I used to look forward to like AR glasses or robot housekeepers have the potential to be very cool, but history tells us that tech is more likely to be used against us. Before you know it you've got ads plastered over everything in your life, everything within your field of view is being logged forever in an NSA data center, and the robot keeps phoning home to it's manufacturer about how often you try to get fresh with it.
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#25Go to Asia and you can see QR codes everywhere. Payments mostly, but in Singapore you will find it also for checking in and out of places for COVID-19 contact tracing and everyone uses it (although now Bluetooth/ tap your phone is taking over). I use it for guests wanting my wifi - just scan this QR and you’re in without much fuss.
QR track and trace is also used here in the UK, quite effective in my opinion although with lockdown being lifted the app will be scrapped.
It may be effective, but it is yet another way we lose privacy.
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#26I've made a tool to back up my important files on paper using QR codes and erasure coding: https://gitlab.com/thexa4/ocrbackup
That's Datamatrix, though, isn't it?
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#27Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#28I'm using QR codes and a website so staff can check the occupancy of university labs.
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#29QR codes for downloading apps compatible with appliances (washing machine, printer, smart whatever, etc.)
Re: Ask HN: What's been the best usage for QR code apart from restaurants menus?
#30In Australia we're using them for check-ins for COVID contact tracing. It's working pretty well.
This works well. Basically every shop has a QR code on their door/counter and when we have outbreaks of COVID we are asked to register stores via an app as we go in.
Then if someone with a positive test is in the same store/time they can ask people to isolate and get tested.
Downside is the big brother element and cops used it to catch someone which seems short sighted in keeping trust, so govt put new rules cops can't access easily.