What are customizable mini-applications that are used to perform specific tasks such as report current temperatures or display stock market data called?

Customizable mini-applications designed to perform specific tasks, such as reporting current temperatures or displaying Stock Market data, are commonly referred to as "widgets." These small software applications can be embedded in websites or mobile devices, providing users with quick access to relevant information and functionalities tailored to their preferences. Widgets often feature user-friendly interfaces and can be customized for different purposes.