OpenAI said it is launching the ChatGPT app for Apple’s (AAPL) iPhone operating system, iOS. “The ChatGPT app is free to use and syncs your history across devices. It also integrates Whisper, our open-source speech-recognition system, enabling voice input. ChatGPT Plus subscribers get exclusive access to GPT-4’s capabilities, early access to features and faster response times, all on iOS,” the company said in a blog post. ChatGPT will be coming to Android devices soon, OpenAI added.