Moonlight

Moonlight is a San Francisco seed-stage startup founded in 2023 by Stanford MBA and former Activision product manager Siran Jiang. It began as Moonlight Focus, a science-backed productivity and biohacking app built around ultradian rhythms, live focus tracking and flow-state interventions, and has since evolved toward Moonlight AI - a personalized learning platform that turns any topic into gamified, AI-generated quests for children. Across both incarnations, the through-line is the same: use behavioral science and playful mechanics to help people direct their attention on purpose.