Is the same content available on all of the HISTORY Vault apps? While there might be slight navigational and organizational differences between the platforms, HISTORY Vault content on iOS, Roku, Android, Apple TV, Amazon Fire TV and historyvault.com is the same. Related articles I don't see a particular show or documentary that I am looking for. How do I find it? Do you offer different types of subscriptions? Do you support all Roku players? Where can I watch HISTORY Vault? How do I watch HISTORY Vault on my TV using Chromecast?