Fire OS is a mobile operating system based on the Android Open ...
wikipedia - 26 Apr 2022Fire OS is a mobile operating system based on the Android Open Source Project and created by Amazon for its Fire tablets, Echo smart speakers and Fire TV devices. It includes proprietary software, a customized user interface primarily centered on content consumption, and heavy ties to content available from Amazon's own storefronts and services. Apps for Fire OS are provided through the Amazon Appstore.