Switch Your Amazon Account to the US to download US Apps
You can switch your Amazon account to a different country in order to install local apps. We currently support many streaming services in both the US such as Amazon Prime, Hulu, HBO, Sling, etc.
Go to Manage Your Content and Devices.
Click on the "Preferences" tab.
Go to the "Country Settings" section, click "Country Settings", and select "Change" next to your current country.
You can pick any address you want as long is it's in the new country and the address is real. You can use a random address generator. Select Update.
note: If you want to pay for US apps like Hulu or HBO Now with a non US credit card, you will need to follow these steps so that your non US credit card will be accepted as a payment method.
Restart your FireTV device and now you can download any app only available in the US!