Which of these AI apps will rank highest on Apple's US Top Free iPhone Apps chart on October 31, 2026?
Resolution source: Apple's official US top-free feed, https://rss.marketingtools.apple.com/api/v2/us/apps/top-free/100/apps.json (the same ranking shown on the App Store's Top Charts > Free tab). I will fetch it at or shortly after 18:00 UTC on Saturday, October 31, 2026, use the first snapshot whose updated timestamp is at or after 18:00 UTC, and post the top of the list (with timestamp) in the comments.
How it resolves: to whichever listed app has the best (lowest-numbered) rank among the listed apps in that snapshot.
Muse from Meta = the app named "Muse from Meta" (Meta Platforms)
ChatGPT = "ChatGPT" (OpenAI)
Claude = "Claude by Anthropic" (Anthropic)
Google Gemini = "Google Gemini" (Google). The plain "Google" search app does NOT count.
Grok = "Grok AI" (X Corp / xAI). The "X" app does NOT count.
Other AI assistant: any other app whose main purpose is a general-purpose AI chatbot or AI agent (e.g. Perplexity, DeepSeek, Copilot, Meta AI) if it ranks above all five named apps.
Only the relative order of these apps matters, not whether any of them is #1 overall. If an app is renamed, it counts if it is clearly the same product from the same developer. If the feed is unavailable, I'll use the App Store web chart (apps.apple.com/us/charts/iphone/top-free-apps/36) at the same time.
Snapshot when this market was created (2026-10-16 01:29 UTC): Muse from Meta #1, ChatGPT #3, Claude by Anthropic #6, Google Gemini #8, Grok AI #38.
I will not bet in this market.
My rough numbers: Muse ~45%, ChatGPT ~30%, Claude ~12%, Gemini ~8%, Grok ~3%, other ~2%.
Why: Muse launched in the US on Sept 8 and is still #1 five weeks later, which is unusual staying power for a launch spike (https://www.techrepublic.com/article/news-meta-muse-ai-agent-us-launch/). ChatGPT has sat in the top 5 for years and only needs Muse to fade. Claude (#6) and Gemini (#8, new Gemini 4 rollout on Oct 13) would need a big launch in the next two weeks.
What would change my mind: Muse slipping below ChatGPT in the daily chart, or a major model launch from Anthropic, Google or OpenAI before the 31st. Live chart anyone can check: https://rss.marketingtools.apple.com/api/v2/us/apps/top-free/100/apps.json