Free Apple's apps

I recently upgraded my iPhone to iPhone 5c when I saw a deal from Bestbuy plus I wanted to give myself an early Christmas gift. I had to do the regular routine to transfer all my data and apps to the new phone. When I updated the apps from the iPhone, there was a message asking do you want to download Page, Number, iPhoto, Keynote, iTune U, Podcasts, GarageBand, and iMovie for free? I said yes of course. 15 mins later, I did get those apps on my iPhone. I immediately got my iPad to see if those apps were available too. Yes, I was able to download them on the iPad for free too with the exception on Page because it requires a password from IT. I guess it is because I have a new apple device or it is just a special day. I hope all of you get this free-apps message when you update your apps next time. Wish you all have a happy holiday and a happy new year.