By now you’ve probably seen one of those odd-looking white squares with a bunch of smaller square dots that make up a random pattern inside–that’s a QR code. QR stands for “Quick Response,” and a QR code is a form of barcode, just like on the packaging of nearly everything you buy.

Usually QR codes are used to store Web links–URLs–so an ad can display just the QR code instead an unwieldy and hard-to-type web address. But QR codes aren’t just for ads. They’ve appeared on business cards, in magazines and books, on coins and bills, and even on tombstones–any place it would be nice to help someone load a Web link into a smartphone but where there isn’t enough room for a URL or in situations where viewers won’t remember the URL later. And the links? They can display anything that can appear on the Web: text, photos, videos, games, and more.

Only one built-in iPhone app can scan QR codes–the Wallet app in iOS 9–but it can scan only QR codes that are associated with Wallet passes, things like airline boarding passes, concert tickets, and iTunes gift cards. For QR codes that encode any other sort of data, Wallet shows an error. It would be nice if Apple would add general QR scanning capabilities to Wallet or the Camera app, but until that happens, you’ll need another app.
There are numerous QR code scanning apps in the App Store, but if you need a recommendation, give TapMedia’s QR Reader for iPhone a try. It’s free with ads (remove them with a $1.99 in-app purchase), scans both QR codes and traditional barcodes on most commercial products, and displays the associated information within the app. It can even help you create your own QR codes.

To use a QR code scanner, launch the app, allow it to access the camera when it asks, and then point it at the QR code. Good apps will scan nearly instantly, but if not, move the camera so the QR code is centered between the guides. If even that doesn’t work, move forward or back so the camera can focus on the centered code.

Once the code has been scanned, the app will usually bring up an in-app Web browser to display whatever was encoded. For certain kinds of data, like books or grocery items, the app may go right to Amazon or a price comparison site. Good apps will also keep a record of sites you’ve scanned, so you can go back to them later, even if you can no longer scan the QR code.

So download a QR code scanning app and keep an eye out for QR codes. Once you start looking, you’ll find them everywhere–it’s a modern-day treasure hunt!

This week I’ve been testing out some of the new features on the Apple TV and a bit on the new watchOS. You can now get an Apple Watch for $299.99. The release of watchOS 2.2 was a minor bump in improvements, including the ability to pair more than one Apple Watch to one iPhone, additional browsing options in Maps, improvements to tracking your pulse and a few other minor updates. Unlike past revisions and improvements to the watchOS this one has left me feeling a little underwhelmed. While the software updates weren’t particularly robust, I was excited to see that the Apple Watch now has even more watch bands to choose from. I’ve had my watch for about six months now and have noticed its getting a bit dingy, so now might be a good time to get another band! There are new sport band colors to choose from including a bold new yellow and a new woven nylon option. For those seeking a more traditional style band, the woven nylon might be just what you are looking for, this band features a standard watch buckle style clasp.

Apple TV got some updates this week and just in time for the NCAA Championship. With the latest software release for Apple TV you can now get the latest NCAA games with an added feature of having two games display on your TV side by side! In addition to being able to watch the latest games, you now have approximately 5000 apps to choose from, including new workout apps. Siri now works better when searching for content, even in the App Store, and you can access your iCloud Photo library. Starting to feel like your apps are getting too cluttered? Easily create folders by dropping app icons onto of each other just like you do on your iPhone or iPad. Dictation, another added feature that can really speak up your search process. Rather than typing through letters one at a time when searching for something specific, you can now use dictation by selecting the Siri button in the search field. I will note, you do have to be in the specific search field, you can’t just use it from the home screen. My favorite updates, one of which works with both the Apple TV and the Apple watch, is the remote app. You can now use your Apple watch to navigate through the options on the Apple TV, a feature that might seem silly to some, but with a small and easily misplaced remote this is bound to be an incredibly valuable new feature. Think the watch is too small to use for a remote? Hook up your Apple bluetooth keyboard! That’s right, you can now use your standard sized keyboard as well.

I should note, that some of these updates, like the NCAA games, do have additional fees. More and more of us are swaying away from traditional TV and with more options coming to the Apple TV and choosing your content, we are getting closer and closer to paying for only what we want.