OnePrompt is a powerful AI chat assistant app that simplifies chat switching, supports storing chat history, and provides robust personal assistant functionality. Users can easily switch chat prompts without manually copying and pasting from browsers. The app also supports saving chat history and exporting it as text to a specified folder. OnePrompt offers plugins for seamless integration with iOS features such as weather, contacts, and calendar. Additionally, it provides Wikipedia and custom plugins. By using OnePrompt, frequent AI chat users can enhance their experience and transform it into a powerful personal assistant.