Technology without art is cold. Art without education is shallow. Education without technology is limited. We work at the point where all three converge—because that's where interesting things live.
Our products are designed to be useful, beautiful, and substantial. We aim to keep you interested and intrigued, providing you with products that earn their place in your life.
We develop our software from scratch — from the raw mathematical implementation to its integration into the needs of today's world. Six APIs, each one exact and live.
Planets, the Moon, eclipses, an 8,870-star catalog with deep-sky objects, and meteor showers — positions, phases, rise/set times, and what's visible tonight, computed for your exact place and moment.
Docs & playgroundFour engines for planning light: sun position and inverse light-timing, moonlight metering, star and deep-sky imaging windows, and architectural daylighting compliance (VSC, Daylight Factor, sDA/ASE).
Docs & playgroundProvably optimal Kubernetes pod placement in milliseconds — the minimum busiest node, with a feasibility certificate, where free exact solvers run out of memory.
Docs & playgroundWestern natal, Vedic, astrocartography, and transits from one endpoint. Charts in 13 house systems, sidereal kundli and panchanga, a full relocation suite, and transit timing — all on JPL DE441.
Docs & playgroundThe five daily Islamic prayer times for any date and place, computed directly from the sun's position — no fixed city tables, and every response ships the raw solar angles it used.
Docs & playgroundExact hotel room allocation with a certificate — the fewest rooms that cover the calendar, booking-to-room-type matching, and which bookings to keep when you're oversold.
Docs & playgroundTwo consumer brands built on the same engines that power our APIs — each one an app to live with and a shop to buy from.
Astrology. Research. Knowledge.
An astrology app to learn, experiment, and integrate Vedic astrology into daily life — track patterns, explore insights, and read the rhythms of the sky against your own. A companion shop of prints, reports, and objects extends it beyond the screen.
Reconnecting you with natural rhythms.
A calendar app that reconnects you with the natural cycles shaping your life — lunar phases, seasonal markers, and celestial events, presented cleanly and beautifully. Its shop turns those same cycles into prints, calendars, and keepsakes.
Questions, ideas, or just want to say hello—we'd be happy to hear from you.
hello@kairoico.com
Address
Kairoi Co. OÜ
Sakala tn 7-2, Kesklinna linnaosa
Tallinn, Harju maakond, 10141
Estonia
Reg. No. 17410529