Shield App is a personalized mobile app security lock.Users can choose the applications they want to encrypt based on their own needs. Whether it's social chat records, financial information management software, personal photo albums, or note-taking apps, as long as you think they contain content you don't want others to view easily, you can add a security lock. By setting a unique password, which only you can open, ensuring that your private information is firmly in your own hands and preventing others from prying.