The era of mobile chatbots is upon us, and following Bing AI’s foray into the domain, OpenAI has now launched its first mobile version of the immensely popular ChatGPT on iOS. Available for download on iPhones, this free and official iteration of the ChatGPT chatbot is built on the powerful GPT-3 model. Users can access the ChatGPT+ and GPT-4 powered services by logging into their accounts or upgrading within the app, potentially offering enhanced accuracy through more recent training.