Application sponges are tools used in various fields, particularly in software development and testing. They help developers and testers simulate user interactions with applications, allowing them to identify bugs and improve functionality. By mimicking real user behavior, application sponges can provide valuable insights into how an application performs under different conditions. These sponges can be automated or manual, depending on the needs of the project. Automated application sponges often use scripts to perform repetitive tasks, while manual sponges require human input. Both types are essential for ensuring that applications meet quality standards before they are released to users, enhancing overall user experience.