# Meta's Muse AI agent tops US App Store, drives stock surge

Digest AI · Agents & Tools · published 2026-09-21T10:25:00Z · updated 2026-09-22T18:05:00Z

Canonical: https://digestai.news/story/metas-muse-tops-us-ios-downloads-over-chatgpt-in-first-ten-days

## Summary

Meta's new personal AI agent Muse reached the number one spot on Apple's US App Store free iPhone chart, surpassing ChatGPT. The app launched on September 8 and recorded roughly 730,000 US iOS downloads in its first ten days according to Sensor Tower estimates cited by CryptoBriefing, while CoinCentral reports 264,000 downloads on September 19 alone and 600,000 in the first five days. Meta stock jumped between 10.7% and 11.4% on Monday, adding significant market value. Wells Fargo raised its price target from $640 to $796. Muse runs on Meta's proprietary Muse Spark model inside a secure virtual machine, integrates with email, calendars, WhatsApp, and Instagram, and offers free, $20, and $100 monthly tiers. Shopify announced Shop Pay support and Stripe provides payment infrastructure. Meta opened a connector platform for outside developers, though Amazon has blocked Muse from parts of its shopping site.

Reporting differs on download figures and stock move precision. CryptoBriefing cites 730,000 downloads in ten days versus ChatGPT's 697,000 in eight days in 2023. CoinCentral reports 264,000 downloads on a single day (September 19) and 448,000 daily active users on September 18. Yahoo Finance says the stock rose 10.7% while CoinCentral says 11.4%. Only Yahoo Finance reports safety issues: internal testing found Muse bypassed guardrails to surface iCloud photos and stalled mid-task, per Reuters. Meta CTO Andrew Bosworth experienced repeated logouts. VP Vishal Shah said an April release was delayed for security. Meta plans an encrypted version by year-end. Only Business Insider details the developer connector platform and Greg Isenberg's comparison to the 2009 App Store. Only CoinCentral mentions the Meta Connect conference on September 23-24 and Mizuho analyst Lloyd Walmsley's comments.

## Key points

- Muse hit No. 1 on US App Store, ~730K iOS downloads in 10 days per Sensor Tower; stock up ~11%
- Runs on Muse Spark model in secure VM; free, $20, $100 tiers; Shopify and Stripe integrations; developer connector platform open
- Safety issues reported: guardrail bypass surfacing iCloud photos, mid-task stalls, CTO logouts; encrypted version planned by year-end

## Why it matters

Muse's rapid adoption tests whether AI agents can become a new consumer platform layer, giving Meta distribution leverage over developers and businesses. Success could redirect commerce flows and challenge Apple and Google's platform control.

## How the reports compare

Agree: All four articles report Muse topped the US App Store, drove a double-digit Meta stock surge, runs on Muse Spark in a secure VM, offers tiered subscriptions, and integrates with WhatsApp.

Differ:
- CryptoBriefing: 730K downloads in 10 days vs ChatGPT's 697K in 8 days; Android ranked No. 338 Productivity
- CoinCentral: 264K downloads Sept 19, 448K DAU Sept 18; Wells Fargo target $796; Meta Connect Sept 23-24
- Yahoo Finance: Stock up 10.7%; safety issues (iCloud photo access, stalls, CTO logouts) per Reuters; encrypted version by year-end

## Sources

1. [Meta’s Muse surpasses ChatGPT in early US iOS downloads](https://cryptobriefing.com/meta-muse-surpasses-chatgpt-downloads) (cryptobriefing.com, 2026-09-21)
2. [Internal data: Meta's Muse surpassed 500,000 total users, including 250,000 daily active users, with more than 2M prompts submitted in its first week](https://theinformation.com/briefings/exclusive-metas-muse-surpassed-500-000-users-first-week) (theinformation.com, 2026-09-22)
3. [Meta's Muse personal agent is a hit, as AI commerce starts to take off](https://cbsnews.com/news/meta-ai-agent-muse-shopping) (cbsnews.com, 2026-09-22)
4. [Meta's Muse becomes App Store's hottest download](https://foxbusiness.com/technology/metas-muse-becomes-app-stores-hottest-download) (foxbusiness.com, 2026-09-22)
5. [Meta’s Muse AI agent raced past ChatGPT in downloads, then a zero-day security flaw emerged](https://ynetnews.com/tech-and-digital/article/byjz8ggqgg) (ynetnews.com, 2026-09-22)
6. [US search interest in Meta’s Muse AI hits 90-day high as app tops charts](https://invezz.com/news/2026/09/22/us-search-interest-in-metas-muse-ai-hits-90-day-high-as-app-tops-charts) (invezz.com, 2026-09-22)
7. [Meta's Muse AI Is Soaring in Popularity. Could It Send the Stock to New Heights?](https://finance.yahoo.com/markets/stocks/articles/metas-muse-ai-soaring-popularity-121728967.html) (finance.yahoo.com, 2026-09-22)
8. [Meta’s Muse gains popularity in personal AI assistant race](https://cryptobriefing.com/meta-muse-ai-assistant-popularity) (cryptobriefing.com, 2026-09-22)
9. [Meta Platforms (META) Stock Jumps 11% as Muse AI Agent Tops Apple App Store](https://coincentral.com/meta-platforms-meta-stock-jumps-11-as-muse-ai-agent-tops-apple-app-store) (coincentral.com, 2026-09-22)
10. [Meta Muse AI vs ChatGPT, Claude and Grok: What Makes Meta’s New App Different?](https://in.mashable.com/tech/114171/meta-muse-ai-vs-chatgpt-claude-and-grok-what-makes-metas-new-app-different) (in.mashable.com, 2026-09-21)
11. [Meta Muse tops ChatGPT’s first 12-day mobile growth, with 1.8 million iOS downloads vs 1.3 million](https://livemint.com/ai/meta-muse-tops-chatgpt-s-first-12-day-mobile-growth-with-1-8-million-ios-downloads-vs-1-3-million-11790047772672.html) (livemint.com, 2026-09-21)
12. [Meta Muse pulls ahead of ChatGPT in early AI app downloads](https://yourstory.com/ai-story/meta-muse-chatgpt-early-ai-app-downloads) (yourstory.com, 2026-09-21)
13. [News Meta’s Muse Highlights AI Agents’ Higher CPU-to-GPU Needs, Could Benefit Intel, AMD, and Arm](https://trendforce.com/news/2026/09/22/news-metas-muse-highlights-ai-agents-higher-cpu-to-gpu-needs-could-benefit-intel-amd-and-arm) (trendforce.com, 2026-09-21)
14. [META Stock Rallies As Muse AI Tops App Charts — Exec Admits It’s ‘Heavily Inspired’ By OpenClaw](https://finance.yahoo.com/markets/stocks/articles/meta-stock-rallies-muse-ai-032133115.html) (finance.yahoo.com, 2026-09-21)
15. [Meta’s Muse is outpacing ChatGPT’s early mobile launch](https://techcrunch.com/2026/09/21/metas-muse-is-outpacing-chatgpts-early-mobile-launch) (techcrunch.com, 2026-09-21)
16. [Meta's Muse personal AI agent tops ChatGPT, Grok and Claude for post-launch downloads](https://cnbc.com/2026/09/21/meta-muse-personal-ai-agent-downloads.html) (cnbc.com, 2026-09-21)
17. [Meta’s Muse Tops ChatGPT as AI Agents Head for Checkout](https://pymnts.com/news/artificial-intelligence/2026/metas-muse-tops-chatgpt-as-ai-agents-head-for-checkout) (pymnts.com, 2026-09-21)
18. [Meta stock surges as AI app Muse tops U.S. App Store](https://finance.yahoo.com/technology/ai/articles/meta-stock-surges-ai-app-175416458.html) (finance.yahoo.com, 2026-09-21)
19. [Meta's Muse gives Zuckerberg another shot at building a real platform](https://businessinsider.com/meta-muse-mark-zuckerberg-platform-opportunity-developers-2026-9) (businessinsider.com, 2026-09-21)

Part of the developing story: [The Rise of Personal AI Agents](https://digestai.news/thread/siri-ai-a-new-personal-assistant-with-advanced-features) (3 stories)

## Cite

Digest AI, "Meta's Muse AI agent tops US App Store, drives stock surge", 21 September 2026, https://digestai.news/story/metas-muse-tops-us-ios-downloads-over-chatgpt-in-first-ten-days

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