Muse from Meta's rapid ascent after its September 8 launch as a proactive personal AI agent drives the tight market odds, with the app claiming the top free spot in the US App Store by mid-September through strong download momentum exceeding early ChatGPT benchmarks. Traders weigh Muse's agentic features—such as autonomous task handling across email, travel, and shopping integrations—against ChatGPT's established user base and productivity positioning, while low-probability outcomes for Google Gemini and others reflect limited recent traction. The 50% implied odds on reserved apps highlight uncertainty around potential new releases or ranking volatility just days before resolution on September 25.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMuse from Meta 51%
ChatGPT 42%
Google Gemini <1%
Vinted: Pre-loved marketplace <1%

Muse from Meta
39%

ChatGPT
42%

Google Gemini
<1%
Vinted: Pre-loved marketplace
<1%

Amazon Prime Video
<1%
Muse from Meta 51%
ChatGPT 42%
Google Gemini <1%
Vinted: Pre-loved marketplace <1%

Muse from Meta
39%

ChatGPT
42%

Google Gemini
<1%
Vinted: Pre-loved marketplace
<1%

Amazon Prime Video
<1%
If the chart is unavailable at 12:00 PM ET, this market may remain open for up to 48 hours to allow for the data to become available. If the data remains unavailable, this market will resolve according to the last published ranking.
To find the overall chart, click "Apps" at the bottom of the US iOS App Store app, scroll down to "Top Free Apps" and click "See All". Then under "Free Apps" in the "Top Charts" section, you'll see the list that will be used as the resolution source to this market (https://apps.apple.com/us/charts/iphone).
Market Opened: Sep 18, 2026, 6:03 PM ET
Resolver
0x69c47De9D...If the chart is unavailable at 12:00 PM ET, this market may remain open for up to 48 hours to allow for the data to become available. If the data remains unavailable, this market will resolve according to the last published ranking.
To find the overall chart, click "Apps" at the bottom of the US iOS App Store app, scroll down to "Top Free Apps" and click "See All". Then under "Free Apps" in the "Top Charts" section, you'll see the list that will be used as the resolution source to this market (https://apps.apple.com/us/charts/iphone).
Resolver
0x69c47De9D...Muse from Meta's rapid ascent after its September 8 launch as a proactive personal AI agent drives the tight market odds, with the app claiming the top free spot in the US App Store by mid-September through strong download momentum exceeding early ChatGPT benchmarks. Traders weigh Muse's agentic features—such as autonomous task handling across email, travel, and shopping integrations—against ChatGPT's established user base and productivity positioning, while low-probability outcomes for Google Gemini and others reflect limited recent traction. The 50% implied odds on reserved apps highlight uncertainty around potential new releases or ranking volatility just days before resolution on September 25.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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