A free app for Android, by ScaleUp.

Nova is powered by ChatGPT, a revolutionary AI chatbot technology that is changing the way people talk to artificial intelligence. It is the first AI chatbot that can answer questions and has the capability to engage in meaningful conversations.

Nova is a chatbot that uses artificial intelligence to converse. ChatGPT is a chatbot that uses a combination of artificial intelligence and natural language processing to converse with users. 

ChatGPT has been built using a deep neural network (DNN), which is a type of artificial intelligence that can recognize and process the content of a sentence, word, or even a conversation.