Harukkuk

Harukkuk is a diary app for everyone, with extra features students find useful — a study timer, timetable, and D-day countdowns — plus recommended presets for office workers, freelancers, and homemakers. No account, no server. Everything you write stays on your phone. ** Add an event in three seconds • Type a title in the center ＋ tab; date, time, and category fill themselves in • Frequent items are one-tap chips that float up the more you use them • "Add this now?" — it learns your patterns and suggests first ** A calendar you can read at a glance • Month view with event chips, multi-day bars, public holidays, solar terms, and observances • Swipe a day up to see its events, to-dos, and study time on one screen • Exam D-days, lunar-calendar birthdays, repeating events, overlap warnings before you save ** Study timer and stats • Track by subject or task; tapping another item saves and…