Sigil Grid

Sigil Grid is a geometric calendar built on spiral principles — a mathematical tool that arranges dates in an expanding spiral pattern from a central point, revealing angular relationships between calendar days.

Place any date at the center and instantly see which dates sit at cardinal (0/90/180/270) and ordinal (45/135/225/315) angles. The spiral grid renders dates across hexagonal and square geometries, turning the calendar into a visual instrument for pattern recognition.

FEATURES

- Hexagon & Square of 9 spiral with adjustable rings (4-12)

- Cardinal and ordinal cross overlays highlighting angular harmonics

- Moon phase tracking with current lunation cycle

- Eclipse tracker for upcoming solar and lunar eclipses

- Solar event markers (solstices, equinoxes)

- Date tagging — mark and annotate significant dates

- Calendar mode with day/month navigation

- Perfect square number markers on the spiral

- Home screen widget with daily grid view

- Full offline functionality — all calculations run locally on device

HOW IT WORKS

Tap the center of the spiral to set your reference date. The grid expands outward, mapping surrounding dates onto the spiral. Dates sharing the same angular line are harmonically related — these alignments surface connections between dates that a standard calendar obscures.

Whether used for esoteric astrology or simply as a unique way to visualize time, Sigil Grid transforms the calendar from a flat list into a living geometric structure.

Works fully offline. Optional Telegram login enables cloud sync of saved events and tags.