Capture burned-in video subtitles and convert to pinyin in real time

Capture burned-in video subtitles and convert to pinyin in real time targets a $2.4B = 200M casual language learners x $12/year ARPU. Assumes global pool of users studying languages casually who would pay small subscription for study tools. total addressable market with low saturation and a year-over-year growth rate of 10% estimated growth for consumer language learning tools and browser extensions usage.

Key trends driving demand: Video-first learning -- more learners use YouTube and short-form video for immersion, increasing demand for subtitle tools.; Improved OCR and edge inference -- better latency and accuracy enable near real-time subtitle capture in-browser.; Shift to active learning workflows -- learners favor tools that let them shadow and produce language, not just passive exposure..