I Built an App with Cursor and Made $100K in 15 Minutes

Starter StoryAbout 4 min readJun 8, 2025Watch original
THE SUMMARYAI-generated

Key Concepts

  • AI Coding
  • Cursor (AI-powered code editor)
  • Million-dollar business idea generation
  • Product launch strategy
  • Audience building
  • Micro-step development
  • Distribution as a moat
  • Creator Buddy (AI content app)
  • ARR (Annual Recurring Revenue)
  • MVP (Minimum Viable Product)

Alex Finn's Story and Creator Buddy

Alex Finn built Creator Buddy, an AI content app, in 3 months using Cursor, without writing a single line of code himself. The app analyzes a user's tweets from X (formerly Twitter) and provides AI-powered coaching on how to create better content. He launched it in January 2024 and achieved $100,000 ARR in 15 minutes and $300,000 ARR in 2 weeks, with almost 500 active paid subscribers.

Background and Inspiration

Alex previously worked at MongoDB as a technical consultant. He started creating content on Twitter in December 2021 while working his 9-to-5 job. He developed a system of tracking tweets in a spreadsheet to analyze what worked. When Elon Musk open-sourced the X algorithm code in March 2023, Alex analyzed it and wrote a viral thread explaining how it worked. This led to a significant increase in his followers, prompting him to quit his job and build a business.

Building with Cursor

Alex discovered Cursor in August 2023 and realized he could build enterprise-level software independently. He created a working prototype on day one and sought feedback from his X community. He iterated on the product for 6-7 months based on user feedback until he felt it was ready to launch.

Framework for Using Cursor

Alex emphasizes breaking down problems into the smallest possible steps when using Cursor. For example, when building a feature around AI brain dumps, he would first ask Cursor to create an input for users to enter an essay, then a button to repurpose the content, and finally, to command the AI model to turn the essay into a tweet. He suggests using ChatGPT to break down features into micro-steps before inputting them into Cursor.

Finding a Million-Dollar Business Idea

Alex advises looking for challenges you personally face. He built Creator Buddy to automate the process of reviewing his tweets, which he was previously doing manually in a spreadsheet. He believes that if you have a challenge, others likely have it too.

Launch Strategy

In December 2023, Alex beta-tested Creator Buddy with 150 subscribers on X. He met with each beta tester to gather feedback and identify areas for improvement. He continued beta testing until the day before the launch on January 24th. He announced the launch 12 days prior and promoted Creator Buddy on X Spaces throughout launch day.

Tech Stack

  • Code Editor: Windsurf (replaced Cursor due to perceived IQ decrease)
  • Product Management: ChatGPT-3
  • Website Hosting: Vercel (Next.js) - $20/month
  • Database: Supabase - $20/month
  • AI APIs: Claude, ChatGPT, and others - $250/month
  • Email API: Resend
  • X API: $5,000/month

Total costs are approximately $5,300 per month, resulting in 80% margins on $25,000 monthly revenue.

Key Lessons Learned

  1. "Figure it out" mindset: Instead of hiring consultants, use AI to solve problems independently.
  2. Distribution is the moat: In a world where anyone can build software, distribution and community are crucial for success.

Advice for Aspiring Builders

  • Take action: Don't overthink. Just start building or creating something.
  • Embrace experimentation: If something doesn't work, move on to the next thing.
  • Consistency: Dedicate even a small amount of time each day to building momentum.

Notable Quotes

  • "On launch day I made $100,000 in 15 minutes and $200,000 in 2 hours" - Alex Finn
  • "I can with cursor build enterprise level software software that required teams of hundreds of people before now completely by myself no help whatsoever" - Alex Finn
  • "The separating factor from people who use cursor well and don't use cursor well is the way you communicate what you want the AI to do" - Alex Finn
  • "Knowledge and product is no longer the moat the moat is your distribution" - Alex Finn

Synthesis/Conclusion

Alex Finn's success with Creator Buddy demonstrates the power of AI-assisted development and the importance of community building. By leveraging tools like Cursor and focusing on solving his own problems, he was able to create a profitable business in a short amount of time. His emphasis on breaking down tasks into micro-steps and prioritizing distribution offers valuable insights for anyone looking to build and launch a product in the age of AI. The key takeaways are to embrace a "figure it out" mindset, prioritize building an audience, and take consistent action.

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