My First Million 5 App Ideas for ChatGPT’s New App Store ft. Greg Isenberg
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Oct 10, 2025 
Greg Isenberg, a product builder and founder of Idea Browser, dives into the exciting world of OpenAI's new App Store. He shares five innovative app ideas, including an AI Tax Guy for effortless tax filing, an AI Healthcare Concierge to streamline doctor visits, and even an AI Grandma to dispense warm, witty advice. They also discuss maximizing discovery in the ChatGPT ecosystem and the differences between Custom GPTs and contextual apps. If you're looking to ride the AI wave, this conversation is packed with insights!
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ChatGPT As A Mini Internet
- ChatGPT's new app store turns the model into a mini internet by connecting external apps inside conversations.
- That contextual discovery can surface apps to 800M weekly users without manual installs.
Design For Contextual Discovery
- Build apps that surface contextually so users don't need to pre-install or configure them.
- Optimize for appearing when users ask relevant queries to win discovery inside ChatGPT.
Build An AI Tax Assistant
- Connect your app to users' data sources (Stripe, Plaid, Google Drive) for one-click tax workflows.
- Surface deductions, auto-fill forms, and enable one-click filing to win this high-value niche.