Bryce Rattner Keithley has built a fitness app called Daily Hundred using AI tools, despite having no prior coding experience. She used Replit, Claude, and Gemini to create custom AI-generated videos of anthropomorphic animals demonstrating exercises. The app was successfully submitted to the App Store, proving that execution is no longer the constraint on good ideas in the AI era.
Keithley's approach involved leveraging beginner-friendly tools and being hyper-literal with her prompts to unlock better AI results. She also utilized Claude Code as a software engineer and navigated the process of submitting the app to the App Store, including fixing rejection feedback.
The tools used by Keithley include Replit for building the app, Claude for technical architecture and code, Gemini for creating images, and Railway for deployment. The episode covers her experience in detail, with timestamps available on YouTube.
Keithley's achievement demonstrates that anyone can build a successful app using AI tools, regardless of their prior technical expertise.
