There are a few channels that have their login credentials stored in the Roku cloud (I don't have a list of them) but the majority require you to log in on every device. And it's no different on my Android based devices, they too require a fresh login on each device.
Some people would prefer it all be stored and log in automatically while others prefer the security of not having their credentials stored by a 3rd party. There are pros and cons to each method.
Dan
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