Competitor Radar / 竞品雷达

Weekday one-page founder morning brief: key metrics, open decisions, risks, and today’s top three must-dos. Matches your language (中/EN).

Maps alternatives for each week's trending products (features, pricing, platforms, open vs closed, gaps) into a competitors.md with a gap matrix.

Answers product and growth questions from Lenny Rachitsky's own archive.