Unable to cancel Roku Channel App
I wanted to download the History vault app so that I could watch a program called the universe. Instead Roku decided to sell me a Roku channel on Roku live TV that I did not want and then they would not cancel it so that I could not get the actual thing that I did want. Now I'm stuck with this stupid channel that does not pause or rewind or fast forward or have any of the episodes that I actually want later than 2012!! I'm so frustrated! Nobody should make you have something that you can't cancel. Ever. That is shady business practices.
Go to your online dashboard at https://www.roku.com/. After signing in, you should be able to manage your subscriptions from there and cancel. (should still be able to use for remainder of the month.)
When signing up for subscriptions, it is usually a better idea to go to the provider's website. Find something you want on Roku, then look to see if a direct subscription is available. (this will usually allow you to watch on both Roku and non-Roku devices).
Many times Roku offers the same "channel 'x' on the Roku Channel") so will usually promote that subscription. Just have to look around a bit and explore options before signing up for subscriptions. (some methods provide better deals than others).
For the History Vault, you will find the channel/app here in the online Roku Streaming Store (History Vault) and the website https://www.historyvault.com/
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Both the 'History Vault' and the 'History Vault on the Roku Channel' are offering 7-day free trials so you should have no issue cancelling and trying the other if that is your preference..