Nat Geo TV mobile app

[CorgiLover1]

I recently discovered the Nat Geo channel. I watch a lot of TV on my iPad so I downloaded the Nat Geo app. Turns out Verizon FIOS does not have access to the Nat Geo TV app. I don't know why this would be since I get that network on my TV through FIOS. Does FIOS have to pay extra or something? I have AMC and Bravo apps and watch shows on my iPad with no problem. I pay for Nat Geo on FIOS TV - I should be able to access their app. Any info would be appreciated.