Anthropic's Claude AI app has surged to the number one spot on Apple's App Store Top Free Apps chart, surpassing both ChatGPT and Google Gemini. The sudden popularity spike comes after President Trump barred federal agencies from using Anthropic's AI tools following the company's refusal to remove ethical guardrails around surveillance and autonomous weapons.

This very public dispute with the Department of Defense, which threatened to label Anthropic a 'supply-chain risk,' sparked a wave of user support. The controversy has propelled Claude past OpenAI's ChatGPT to become the most downloaded free app on the App Store. While OpenAI stepped in to fill the government contract void, the situation has created an unexpected boost for Anthropic's consumer-facing product.

OpenAI CEO Sam Altman publicly criticized the government's decision, calling Anthropic's blacklisting 'a very bad decision' and 'an extremely scary precedent' during an X AMA. Despite being competitors, Altman expressed hope the designation gets reversed, suggesting the broader AI industry views the government's stance as concerning for technological development.