San Francisco, February 19, 2025 — Elon Musk, CEO of xAI and Tesla, recently announced that the Grok AI app developed by his company has surged to the top of the free apps chart in the App Store's productivity category. A screenshot shared by Musk on social media shows Grok surpassing several well-known apps, including OpenAI's ChatGPT (second), Google Gemini (third), Gmail (fourth), Microsoft.