Use a code app question.

So I was trying to use a code on the xbox one and found it to be a series of steps, once I found the app I am unable to pin it to my apps home page, why? I own the xbox one without the kinect, was hoping to pin this app to home and manually enter codes when
I get them. I have to go to apps and games, search apps, and scroll to the right a bit to find the use a code app. Normally I would just go to my apps and use it there, is there a trick to pinning this app since it doesn't let me?

:)

 

Can't type in code

Whenever I click "use a code" or really anything involving the store it says "check for an update or uninstall the app" my questions are how do you update the store and uninstall it and has anyone else ever had this problem

 

Turn a Text Code into a QR Code

I got my NowTV credit for Xbox live today. They emailed he familiar text code and I ought it'd be cool to turn that into a QR code that Kinect could read for me on the X1.
Dead easy, I used the iOS app
Fancy QR Code Generator
But plenty of others are available, including websites
Copied and pasted the text into the text box in the app, clicked generate and then saved the QR code as an image
Used the command, Xbox, use a code then used my iPad to show Kinect my QR Code and it worked. Sweet