A few days ago, Microsoft released a standalone Android app for Microsoft Copilot, giving you a quick way to access the AI assistant. Turns out the iOS and iPad versions weren't far behind, because they're now available from Apple's App Store. Just like in Copilot on desktop and other AI chatbots, such as ChatGPT, you can type in your question and wait for responses generated by artificial intelligence. In Copilot's case, you'll get responses spun by OpenAI's GPT-4, the company's latest large language model. The free version of ChatGPT, in comparison, is powered by the older ChatGPT-3.5, and you'll need to pay for ChatGPT Plus to get access to the newer model.