IoT applications refer to the various uses of the Internet of Things, where everyday objects are connected to the internet to collect and exchange data. These applications can be found in smart homes, where devices like smart thermostats and smart lights can be controlled remotely, enhancing convenience and energy efficiency. In industries, IoT applications help monitor equipment and optimize operations. For example, sensors can track machinery performance in real-time, allowing for predictive maintenance and reducing downtime. Overall, IoT applications improve efficiency, safety, and user experience across multiple sectors.