Developer's DescriptionBy Amazon.comSearch, compare prices, read reviews, share products, access Gold Box deals, and make purchases.The Amazon Underground app includes enhanced features and access to content that isn't available on the Amazon Shopping app found on Google Play. Underground combines Amazon's best mobile shopping experience with instant streaming of Amazon Instant Video. Optimized for your mobile phone, Underground allows you to quickly search, compare prices, read reviews, share products with friends, access Gold Box deals (US only) and make purchases securely.