Logout:- Every application have different types of security. Most of application have user login or register functionality in application. This login or register functionality is basically a combination of some personal data of user as like Name, Email, Mobile Number, City, State etc. For fetching this data from server call the API every time and it is taken more time because this process take some time for resolving this problem some repeated information save in cached memory and local data base of application. Logout functionality is made for remove this data from local data base and cached memory. The logout functionality also worked for use multiple account in same device. Logout functionality is a critical component of any secure mobile application. It allows users to end their session, protecting their personal information and ensuring that no unauthorized access occurs after they leave the app. This guide outlines the importance of logout functionality and provides a step-by-step approach to implementing it in an Android application. The primary purpose of the logout feature is to enhance security. Users may access sensitive information, and a proper logout ensures that this data is not accessible once they leave the app. This is especially crucial for apps that handle personal data, financial transactions, or private communications. Providing a logout option gives users control over their session. It allows them to end their interaction with the app at their discretion, ensuring a sense of security and privacy. Implementing logout functionality helps manage user sessions effectively. It prevents multiple active sessions and potential conflicts that might arise when the same user logs in from different devices. A well-implemented logout feature contributes to a seamless user experience. Users appreciate having the option to log out easily, making them more likely to return to the app. The logout option should be easily accessible. Common practices include placing it in the app's settings or user profile section. Consider using a prominent button or link that clearly indicates the logout action. Implementing a robust logout functionality in an Android application is essential for security, user control, and overall user experience.