How I Built a GPT App in Under 4 Hours and Saved $7,500 in MVP Costs
Last Updated on September 25, 2025 by Editorial Team
Author(s): Supreeth Kashyap
Originally published on Towards AI.
From $7,500 and 3 Months to Just 4 Hours: My AI-Powered App Journey
When I built my first app a few years ago, it cost me around $7,500 and three months of development time just to get a minimum viable product (MVP) out the door. Hiring developers, iterating on designs, and managing timelines drained both money and energy.

The article discusses the author’s transformation from spending significant time and money on app development to efficiently creating a GPT-powered app in under four hours without any coding. It emphasizes the advantages of using AI-driven tools like Figma and Firebase Studio that streamline the design and development process, making it accessible for founders to validate their ideas quickly and effectively.
Read the full blog for free on Medium.
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