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COSMO is not available on iOS. Here are the best AI assistant alternatives that iPhone users can use today.
Google COSMO appears to be exclusively designed for Android due to its reliance on system-level APIs like AccessibilityService and on-device Gemini Nano. There is no confirmed iOS version, and the technical barriers make a full port unlikely in the near term. See our Android vs iOS comparison for details.
However, several excellent AI assistants are available on iPhone that cover some of COSMO's reported capabilities:
Google's conversational AI assistant available on iOS. While it lacks COSMO's proactive agent features, Gemini offers powerful chat-based AI with access to Google's latest models.
OpenAI's widely-used AI assistant available on iPhone. ChatGPT offers advanced conversational AI, code generation, and creative capabilities.
Apple's built-in assistant enhanced with Apple Intelligence in iOS 18+. The only AI on iPhone with deep system integration — but limited AI capabilities compared to COSMO.
An AI-powered search engine with an iOS app. Excellent for research tasks, offering cited, sourced answers similar to COSMO's Deep Research skill.
Microsoft's AI assistant available on iOS. Integrates with Microsoft 365 ecosystem and offers GPT-4 powered capabilities.
No single iPhone AI assistant currently replicates COSMO's reported proactive agent capabilities. The closest combination would be Siri + Apple Intelligence for system integration, ChatGPT or Gemini for advanced AI reasoning, and Perplexity for research — but none offer autonomous browsing, screen awareness, or persistent memory comparable to what COSMO reportedly provides on Android.