# 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.

- **Founded:** 2023
- **Headquarters:** San Francisco, California, United States
- **Founders:** Siran Jiang (CEO & Co-Founder)
- **Team size:** Small team (reported at roughly 34 in third-party data sources; core team appears to be a handful of people led by the founder)
- **Products:** Moonlight Focus (iOS app), Moonlight AI - Personalized Learning Adventures
- **Notable:** Selected by and funded through Entrepreneurs Roundtable Accelerator (2023)., Raised a $150K seed round in June 2023., Shipped the Moonlight Focus app to the Apple App Store under Moonlight Focus Inc.

## Products & services

- **Moonlight Focus (iOS app)** — A productivity and biohacking app built around ultradian rhythms - roughly 90-minute cycles of peak focus. Features include live focus tracking, personalized focus assessments, and science-backed interventions to help users enter and sustain a flow state. Available on the Apple App Store.
- **Moonlight AI - Personalized Learning Adventures** — An AI-powered learning platform for children (roughly ages 6-10) that turns any topic into a customized quest adapted to a child's age, interests and learning style. Offers audio and interactive modes, gamification with stars and achievements, parent progress tracking, and a setup that takes under two minutes via simple link-sharing.

## Achievements

- Selected by and funded through Entrepreneurs Roundtable Accelerator (2023).
- Raised a $150K seed round in June 2023.
- Shipped the Moonlight Focus app to the Apple App Store under Moonlight Focus Inc.
- Founded by a Stanford GSB MBA with a rare product background spanning gaming (Activision/Call of Duty) and finance (Evercore, Warburg Pincus).

## Latest updates

- **2023-06** — Closed a $150K seed round led by Entrepreneurs Roundtable Accelerator.
- **2023-09** — Promoted the Moonlight Focus app publicly via LinkedIn and Instagram.
- **2026-01** — Focus apps as a category drew fresh scrutiny in the press (The Conversation / TechXplore) over whether they actually improve productivity - the market Moonlight Focus plays in.
- **2026-07** — Website (moonlightfocus.com) now presents Moonlight AI - a personalized, gamified learning platform for children - signaling a pivot from the adult focus app toward kids' edtech.

## Links

- Website: https://www.moonlightfocus.com/
- LinkedIn: https://www.linkedin.com/company/moonlightfocus
- Instagram: https://www.instagram.com/moonlightfocus.app/

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Profile page: https://yespress.io/moonlight
Published by YesPress — https://yespress.io
Last updated: 2026-08-03