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Tech·Big Tech

#1 Free App in the US Apple App Store on March 31?

Market icon
Tech·Big Tech

#1 Free App in the US Apple App Store on March 31?

Mar 31

Mar 31

ChatGPT 94%

Claude by Anthropic 5.6%

Temu: Shop Like a Billionaire <1%

MyTSA <1%

Polymarket
NEW

ChatGPT 94%

Claude by Anthropic 5.6%

Temu: Shop Like a Billionaire <1%

MyTSA <1%

Polymarket
NEW
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ChatGPT

$1,962 Vol.

94%

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Claude by Anthropic

$582 Vol.

6%

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Temu: Shop Like a Billionaire

$200 Vol.

<1%

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MyTSA

$99 Vol.

<1%

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Google Gemini

$320 Vol.

<1%

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Threads

$198 Vol.

<1%

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Google

$198 Vol.

<1%

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NCAA March Madness Live

$194 Vol.

<1%

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MLB

$163 Vol.

<1%

This market will resolve according to the iOS app, ranked #1 in the United States on the iPhone Apple App Store's overall Top Charts under "Free Apps", as of 12:00 PM ET on the specified date. 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).ChatGPT commands a dominant 92.5% implied probability as the trader consensus for topping the US Apple App Store free apps chart on March 31, driven by its recent reclamation of the #1 spot as of March 26, following a brief dethroning by Anthropic's Claude app in early March amid buzz from Anthropic's rejection of Pentagon AI access demands. OpenAI's sustained user adoption, fueled by advanced large language model features and 2025's record downloads, underpins this positioning against rivals like Google Gemini and Threads, while shopping app Temu and others lag far behind. Realistic challenges include a potential late surge from the NCAA March Madness Live app as Elite Eight games conclude around March 30, though current momentum and proximity to resolution favor ChatGPT holding firm.

ChatGPT commands a dominant 92.5% implied probability as the trader consensus for topping the US Apple App Store free apps chart on March 31, driven by its recent reclamation of the #1 spot as of March 26, following a brief dethroning by Anthropic's Claude app in early March amid buzz from Anthropic's rejection of Pentagon AI access demands. OpenAI's sustained user adoption, fueled by advanced large language model features and 2025's record downloads, underpins this positioning against rivals like Google Gemini and Threads, while shopping app Temu and others lag far behind. Realistic challenges include a potential late surge from the NCAA March Madness Live app as Elite Eight games conclude around March 30, though current momentum and proximity to resolution favor ChatGPT holding firm.

Experimental AI-generated summary referencing Polymarket data · Updated
This market will resolve according to the iOS app, ranked #1 in the United States on the iPhone Apple App Store's overall Top Charts under "Free Apps", as of 12:00 PM ET on the specified date. 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).ChatGPT commands a dominant 92.5% implied probability as the trader consensus for topping the US Apple App Store free apps chart on March 31, driven by its recent reclamation of the #1 spot as of March 26, following a brief dethroning by Anthropic's Claude app in early March amid buzz from Anthropic's rejection of Pentagon AI access demands. OpenAI's sustained user adoption, fueled by advanced large language model features and 2025's record downloads, underpins this positioning against rivals like Google Gemini and Threads, while shopping app Temu and others lag far behind. Realistic challenges include a potential late surge from the NCAA March Madness Live app as Elite Eight games conclude around March 30, though current momentum and proximity to resolution favor ChatGPT holding firm.

ChatGPT commands a dominant 92.5% implied probability as the trader consensus for topping the US Apple App Store free apps chart on March 31, driven by its recent reclamation of the #1 spot as of March 26, following a brief dethroning by Anthropic's Claude app in early March amid buzz from Anthropic's rejection of Pentagon AI access demands. OpenAI's sustained user adoption, fueled by advanced large language model features and 2025's record downloads, underpins this positioning against rivals like Google Gemini and Threads, while shopping app Temu and others lag far behind. Realistic challenges include a potential late surge from the NCAA March Madness Live app as Elite Eight games conclude around March 30, though current momentum and proximity to resolution favor ChatGPT holding firm.

Experimental AI-generated summary referencing Polymarket data · Updated

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Frequently Asked Questions

"#1 Free App in the US Apple App Store on March 31?" is a prediction market on Polymarket with 9 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "ChatGPT" at 94%, followed by "Claude by Anthropic" at 6%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 94¢ implies that the market collectively assigns a 94% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"#1 Free App in the US Apple App Store on March 31?" is a newly created market on Polymarket, launched on Mar 27, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "#1 Free App in the US Apple App Store on March 31?," browse the 9 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "#1 Free App in the US Apple App Store on March 31?" is "ChatGPT" at 94%, meaning the market assigns a 94% chance to that outcome. The next closest outcome is "Claude by Anthropic" at 6%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "#1 Free App in the US Apple App Store on March 31?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.