TouchChat is a communication app designed to help individuals with speech and language challenges express themselves. It provides a user-friendly interface with customizable vocabulary and symbols, making it accessible for users of all ages and abilities. The app supports various communication methods, including text-to-speech and symbol-based communication, allowing users to create sentences easily. TouchChat is often used by individuals with conditions such as autism, cerebral palsy, or aphasia, enabling them to engage more effectively in conversations and social interactions.