Interactive apps are software applications designed to engage users through direct interaction. They often feature touchscreens, voice commands, or gestures, allowing users to manipulate content in real-time. Examples include games, educational tools, and social media platforms, which encourage participation and feedback. These apps can be found on various devices, such as smartphones, tablets, and computers. They often utilize multimedia elements like videos, animations, and sound to enhance the user experience. Popular interactive apps include Duolingo for language learning and Kahoot! for quizzes, making learning and entertainment more engaging.