koyomi-app

A calendar app that brings traditional Japanese almanac data to your fingertips. View Rokuyo (lucky/unlucky days), daily Heavenly Stems & Earthly Branches, Nine Star Ki, 27 Lunar Mansions, moon phases, 24 Solar Terms, 72 Pentads, and Doyo periods — all in one app. Features: - Month view with daily almanac details at a glance - Week view for a focused weekly overview - Day view with comprehensive details including lunar calendar date, moon age, and seasonal markers - Customizable display settings — show only the information you need - Fully offline — no internet connection required