Sensim is designed to provide passive language immersion by replacing selected English words and phrases on webpages with Foreign Language equivalents.The extension stores learning progress and vocabulary unlock status locally on the user’s device using Chrome storage APIs.Sensim does not:sell user datacollect personally identifiable informationtrack browsing activity for advertising purposestransfer user data to third parties unrelated to the extension’s functionalityWebpage text is processed only for the purpose of performing word replacement and language immersion features.User data is used solely to support the extension’s core educational functionality.