Elon Musk's AI startup xAI has launched a consumer app called Grok, providing access to its chatbot of the same name.Grok Beta for iOS offers access to xAI's latest model, Grok 2, for free.The app's key features include image generation, real-time information from the web, and a focus on privacy.The launch of the Grok app follows the December launch of a free version of the chatbot for all users on X.