Multi-touch is a technology that allows a device, like a smartphone or tablet, to recognize and respond to multiple points of contact on its screen simultaneously. This means that users can perform gestures, such as pinching to zoom or swiping with multiple fingers, enhancing the way they interact with applications and content. The development of multi-touch technology has transformed user interfaces, making them more intuitive and engaging. It is commonly used in devices from companies like Apple and Samsung, enabling features that improve navigation and functionality in various software applications, including games and productivity tools.