Press kit

The one-paragraph summary

Circa is a circadian app that runs the whole jet-lag plan, not just light and melatonin. It generates a personalised, hour-by-hour plan from one flight number, covering light, sleep, caffeine, melatonin, exercise, food, hydration, supplements, transit logistics, and alcohol mitigation, with every recommendation graded by evidence strength. Built on a real, unit-tested circadian engine. Bootstrapped from Hong Kong. The first plan is free.

The pitch in three lines

• Jet lag costs frequent travelers three to five productive days each direction at unaided rates.
• Most jet-lag apps cover light and melatonin. Circa runs the whole protocol, the way the science actually says to do it.
• Engineered to enterprise-credible science with consumer-grade UX, at a price that pays back in one trip.

Talking points

• The whole-trip thesis. Light and melatonin are settled science but incomplete. Exercise, meal timing, hydration, supplements, transit, and alcohol mitigation are levers Circa runs that incumbent apps deliberately do not touch.
• Evidence-graded recommendations. Every Circa output is tagged Core (settled science), Supportive (well-evidenced, smaller effects), or Comfort (helpful environment, no clock-shifting). Over-claiming is the fastest way to lose credibility, and we do not.
• Personalisation is the USP. Two travelers on the same flight get different plans. The engine targets your destination wake time, your office hours, and your habitual routine, not just the time-zone delta.
• Bootstrapped, science-first. Real circadian engine with hundreds of unit tests. No biotech venture-funded splash; a small team that takes the science rigour seriously.

The numbers (independently sourced)

• Unaided circadian system shifts about 0.5 to 1 hour per day (AASM, 2007 review).
• Jet-lagged business travelers perform at roughly 61% of normal (Kayak/Airbus industry estimate).
• Global business travel spend in 2026: roughly US$1.6 trillion (Engine, 2026).
• Corporate wellness market 2025: roughly US$68 billion, projected to US$138 billion by 2035 (Grand View Research, 2026).

Assets

Logo, wordmark, app icon, screenshots, and preview video available on request from press@circa-app.io. A public asset kit will be posted here when the brand finalises.

Company facts

• Name: Circa.
• App name on the App Store: Circa: Jet Lag Coach.
• Founded: 2026.
• Based in: Hong Kong.
• Funding: Bootstrapped.
• Press inbox: press@circa-app.io.
• General inbox: hello@circa-app.io.

Embargo and interview policy

We will work with embargoed previews. We do not currently field on-record founder interviews. We can offer written quotes, technical briefings on the engine and science, and access to the product for review.