sidereal.digital

sidereal.digital is an independent dev studio focused on astrological software. We turn published astronomical algorithms into interactive experiences you can hold in your pocket.

Kairos — Try the demo
In Development

Kairos

Track the Moon's phase and sign with arcminute precision. See the Moon's exact sign and degree, countdown to every ingress, and plan around the full lunar cycle with a true-phase month calendar.

Custom Flutter rendering engine Meeus + VSOP87 4 zodiac systems 4 themes
Try the web demo → Join the waitlist
Kairos — timeline of upcoming zodiac ingresses with current Moon position Kairos — list of upcoming Moon phases with exact dates and times Kairos — month calendar showing the Moon's phase for every day Kairos — settings panel showing the four available color schemes

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