Voca Constrains Its AI Language Tutor's Conversation Path with a Fixed Curriculum

Voca's developer launched the product on Hacker News, arguing that most AI tutors easily drift from the learning path and therefore organizing language-learning conversations around a curriculum.

This is a community launch lead. Follow-up should verify curriculum sources, proficiency levels, speaking feedback, and review mechanisms, while examining how the product balances a fixed curriculum with natural conversation.