Is upgrading to IOS 8.1 inclusive of Apple Apps like Keynote, Page, iMovie, etc?

[iMore Question]

We've two iPhone (Iphone 5 and iPhone 5c). I've both updated for IOS 8.1 and:
a) On iPhone 5c after the update I've found some Apple Apps like: Page, Number, Keynote and iMovie.
b) On iPhone 5 after the update I' haven'yt find those...
Take notice that both for iPhone 5 and iPhone 5c I never have bought the mentioned Apple Apps...
Someone could explain me more details about?