You can use one Amazon account to sign in on multiple Fire TV Stick devices, instead of needing to create multiple Amazon accounts. This will not affect downloading the ScreenCloud app across devices and using them for digital signage.

Please note, that you won't be charged anything extra for this as well through ScreenCloud and/or Amazon. As of March 2019, Amazon has confirmed that it does not charge extra for using one sign-in across multiple devices. You also don't need to be a prime member to use one sign-in across multiple devices.

You can be charged additional fees and services if you're using streaming apps other than ScreenCloud on the Amazon device, such as Netflix, HBO, etc. Amazon is a separate entity and company from ScreenCloud, our app is only supported to run for free on their Fire TV Stick devices. If you have more questions or concerns on anything Amazon-related directly for your account, please visit https://www.amazon.com for support.