Review: QRafty UWP
Even though both NFC 'info' tags and QR codes seem not to have really taken off in the mainstream after a decade of availability*, QR codes are still a 'thing' and most people recognise them when they see the four corner dots and mass of encoded characters within. And most phones can now recognise QR codes, even if - as here - an extra application is needed. There are quite a few QR code scanners under Windows 10 Mobile, but this is the first that I've seen that focusses (pun intended) more on QR code generation and what you might do with such a graphical construct.
* anecdotally, I spent half an hour trying products in the house for any packaging with a QR code to test and drew a blank. Is it just me? I distinctly remember many things coming with a QR code on the box a few years ago, yet they've now disappeared. Odd!
From the Store description:
QRafty is the ultimate QR code management application on Windows 10, integrating smartly with default system apps to handle QR codes. With QRafty transferring data between devices is as easy as pointing one’s camera to another’s screen - no setup needed. Since it does not store or transmit (as a matter of fact, QRafty does not access the internet at all) any of the information it creates or reads, QRafty is a great way of transferring sensitive data between airgapped devices: no network/Bluetooth/NFC transfers to sniff or cloud to worry about.
For someone who thought that QR codes were basically representations of web URLs, map locations, and so on, to realise that anything that can be encoded in plain text can also be encoded in QR form is something of a revelation. To take things to the extreme, you could could encrypt some secrets (shhh, don't tell GCHQ!) into text form and then encode them again graphically, into QR form. You can then pass these to yourself on another device, or to a friend or colleague, visually, with no need for Internet, Wifi or Bluetooth - in other words, no electronic trail or interception possibilities.
Now, admittedly, passing information from one air-gapped device to another is somewhat niche, but think about it. I'm sure there are multiple times each week when you want to pass a paragraph of text from your phone to your Windows laptop or vice-versa, or from your Windows phone to your Android tablet. That sort of thing. Yes you could email it to yourself, you could play Russian Roulette (will it work?) with Bluetooth, you could mess around with over-the-air clipboard utilities and schemes. In fact, there are a hundred ways to do this. But this is the first I've seen that uses light!
Here's QRafty in action, and I'll demonstrate the text encoding and try to push it to extremes a little:
This last example reveals the limits of using QR code for information transmission - it's limited by the size and resolution of the 'transmitting' phone and by the imaging capabilities of the 'receiving' phone. Here I had a QHD Lumia to display and a class-leading Galaxy S9+ to read, but even with this combination I don't think I could push much more text without things breaking down and - at worst - gibberish and uncertainties creeping in!
QR-ing text from device to device (phones, tablets, computers, etc.) is an interesting leap of lateral thinking. I guess it's always been possible, with the right software, and perhaps it's that the use case is utterly niche that has stopping a developer from bringing this front and centre... until now!
With the focus on QR generation rather than scanning, the latter's functionality is limited, compared to other scanners. For example, there's no log/history of codes scanned, for later retrieval and link following. But as I said at the start, QR codes still aren't commonplace in 2018 - surprisingly - so it's good to see QR making a small comeback here, with some clever lateral thinking!
You can grab the 14 day free trial of QRafty UWP here in the Store. After that it's a £1 or so to carry on using it forever. Bargain!
Reviewed by Steve Litchfield at