Polar Bear Immersive Translation is a translation plugin built on industry-leading engines, supporting various browsers and offering PDF translation, academic translation, immersive translation, whole-page selection, and online dictionary features. Its main advantages include high accuracy, speed, and support for multiple languages, catering to users' translation needs across different scenarios. Developed by Shenzhen Xiangta Technology Co., Ltd., it is currently available for installation in the application stores of multiple browsers, including Chrome, Edge, Firefox, and 360 Safe Browser. The specific pricing is not clearly stated on the page, but there appears to be a free version available.