A Claude-built Spanish learning app earned its first dollar
Spanish Buddy is a web app for learning Mexican Spanish. It started from a practical gap: many Spanish learning apps lean toward European Spanish, so they miss vocabulary, slang, and pronunciation that matter in Mexico. Claude was used to create a 12-week curriculum around the maker’s own learning goals, then break it into 84 daily interactive lessons.
The lessons include , , dialogue and listening practice, and progress and mastery tracking. was then used for branding and interface . Cowork helped set up an MS Azure pipeline that pre-generates Mexican Spanish audio, so pronunciation does not rely on robotic browser .
It also guided the use of GitHub and the site deployment. The shared build stats include 84 daily lessons, about 130,800 lines of code, roughly 652,000 words of source, and a curriculum spec document of 14,806 words across 1,852 lines.
Key points
- The app focuses on Mexican Spanish instead of defaulting to European Spanish.
- Claude helped turn personal learning goals into a 12-week curriculum.
- The product includes 84 daily lessons, , listening practice, and progress tracking.
- was used for branding and interface .
- Cowork helped with MS Azure audio generation, GitHub, and deployment.