I Built an Entire App in Only 52 Min with Codex & Idea Browser

I Built an Entire App in Only 52 Min with Codex & Idea Browser

Author: Greg Isenberg October 17, 2025 Duration: 52:36
Go to https://startup-ideas-pod.link/idea-browser to get validated startup ideas every single day and prompts to build your big idea Join me as I chat with Alex Finn about going from no idea to building a functional app using AI tools. We use Idea Browser to find trending business opportunities, develop a wellness habit tracking app concept with ChatGPT, and build it using Codex's AI agents. The episode showcases how one person can leverage AI to find and build an idea into a product. Get the blueprint to go from idea to an app in one afternoon: https://startup-ideas-pod.link/ai-builder Timestamps: 00:00 - Introduction and overview 00:39 - Finding app ideas with Idea Browser 05:19 - Using ChatGPT to develop the app concept 17:36 - Overview of Codex and its capabilities 22:25 - Building the MVP while spinning up multiple AI agents 46:04 - Marketing strategy for launching the app Key Points: • Using Idea Browser to find validated business ideas by analyzing trends and market insights from social platforms • Leveraging ChatGPT to develop a business concept into a detailed Product Requirements Document (PRD) • Building an app with OpenAI's Codex using both local and cloud agents simultaneously • Implementing a marketing strategy through organic social media outreach The #1 tool to find startup ideas/trends - https://www.ideabrowser.com LCA helps Fortune 500s and fast-growing startups build their future - from Warner Music to Fortnite to Dropbox. We turn 'what if' into reality with AI, apps, and next-gen products https://latecheckout.agency/ Boringmarketing - Vibe Marketing for Companies: boringmarketing.com The Vibe Marketer - Join the Community and Learn: thevibemarketer.com Startup Empire - get your free builders toolkit to build cashflowing business - https://startup-ideas-pod.link/startup-empire-toolkit Become a member - https://startup-ideas-pod.link/startup-empire FIND ME ON SOCIAL X/Twitter: https://twitter.com/gregisenberg Instagram: https://instagram.com/gregisenberg/ LinkedIn: https://www.linkedin.com/in/gisenberg/ FIND ALEX ON SOCIAL Youtube: https://www.youtube.com/@AlexFinnOfficial/videos X/Twitter: https://x.com/AlexFinnX Creator Buddy: https://www.creatorbuddy.io/

Greg Isenberg, the CEO of Late Checkout who has previously advised platforms like Reddit and TikTok, hosts a twice-weekly conversation designed to spark entrepreneurial thinking. The Startup Ideas Podcast is less about dry business theory and more about opening a window into the process of identifying opportunities. Each episode serves as a catalyst, presenting listeners with actionable concepts and the reasoning behind them. You'll hear Greg dissect market gaps, consumer behaviors, and emerging trends, translating them into tangible ideas for potential ventures. The aim is to build a consistent habit of creative exploration, pushing beyond the initial "what if" to consider the "how" and "why." This podcast functions as a regular dose of inspiration for anyone feeling stuck in a rut or simply curious about the mechanics of building something new. It’s a resource for aspiring founders, side-hustlers, and innovators who appreciate seeing the blueprint before the ground is broken. Tuning in means joining a forward-thinking dialogue where the next big idea might just click into place.
Author: Language: English Episodes: 100

The Startup Ideas Podcast
Podcast Episodes
Claude Code Clearly Explained (and how to use it) [not-audio_url] [/not-audio_url]

Duration: 31:27
In this episode, I sit down with Professor Ras Mic for a beginner-friendly crash course on using Claude Code (and AI coding agents in general) without feeling overwhelmed by the terminal. We break down why your output is…
Build a $1M+ Solopreneur Business Using AI [not-audio_url] [/not-audio_url]

Duration: 42:15
Today I’m joined by Samuel Thompson, an internet capitalist who’s launched 100 companies in 10 years, and he walks me through a live, end-to-end build of an info product using AI. We break down how he goes from idea → AI…
6 Scalable Startup Ideas (You Can Start Tomorrow) [not-audio_url] [/not-audio_url]

Duration: 55:07
In this episode, I sat down with Chris Koerner and we go through a set of approachable startup ideas that start low-friction but can scale if you get distribution right. We start with a potential “app ecosystem” opportun…
"Ralph Wiggum" AI Agent Explained (& How to Use It) [not-audio_url] [/not-audio_url]

Duration: 28:45
We got Ryan Carson on the pod to break down the “Ralph Wiggum” Agent and why it’s suddenly everywhere. He walks me through a simple workflow that lets an autonomous agent build a full product feature while I sleep: start…
How I code with AI agents, without being 'technical' [not-audio_url] [/not-audio_url]

Duration: 33:34
In this episode, I’m breaking down a guide from Ben Tossel on how you can actually build with AI agents without being technical. I walk through what he’s shipped as a “non-technical” builder, why he lives in the terminal…
Making $$ with Alibaba's NEW AI Agents (Full Demo) [not-audio_url] [/not-audio_url]

Duration: 25:30
I walk through Alibaba’s new AI agent tool, Accio, and show how it helps you go from “what should I build?” to actual product concepts and supplier options. I demo how it spots rising trends, pulls specific product oppor…
Set Up Claude Skills in 21 Mins (for Non-Technical People) [not-audio_url] [/not-audio_url]

Duration: 19:58
In this episode, I walk through a beginner-friendly, step-by-step way to set up Claude Skills so you can get more consistent, higher-value output over time. I show where to enable Skills (it’s not on by default), how to…
The OpenAI Launch Nobody's Talking About (ChatGPT Skills) [not-audio_url] [/not-audio_url]

Duration: 18:47
Today I break down a big news item I think is flying under the radar: OpenAI quietly launched Skills for Codex, and I explain what that means (and how it differs from sub-agents and MCPs). I then share a fast-moving tren…
Claude's Agent Mode was LEAKED (First Look) [not-audio_url] [/not-audio_url]

Duration: 20:28
In this episode, I go over one AI news item I can’t stop thinking about, one trend you can build a business around, two tools I’m using, one startup idea you should steal, and one framework to end on. I start with a leak…
Make 2026 the Best Year (Answer These 7 Questions) [not-audio_url] [/not-audio_url]

Duration: 51:41
I’m joined by Sahil Bloom for a throwback episode where he walks me through his “personal annual review,” a 7-question framework to reflect on 2025 and set yourself up to crush 2026. We talk about why reflection beats ra…