ChatKit is an app powered by ChatGPT that offers users an intelligent and intuitive chat experience. - Ability to use URLs as chat context, allowing users to add links to articles, YouTube videos, PDFs, and other online resources for additional context in conversations. - Full-text search functionality, enabling users to easily search their chat history for specific keywords or phrases. - Enhanced user interface with additional features for a smoother and more engaging user experience. - Advanced functionality with ChatKitPremium, including tasks such as password generation, language translation, JavaScript console usage, and SQL terminal operations. - Secure API key storage for added security.