Calendar Planner - Reminder is a free iPhone application developed by 政 王. It offers a range of practical functions such as perpetual calendar queries, lunar calendar queries, holiday and rest arrangements, schedule recording, and holiday anniversary reminders.

With this app, users can access a variety of calendar features including perpetual calendars, lunar calendars, yellow calendars, festival terms, holiday arrangements, and lucky day queries. The app also provides a reminders feature that allows users to set schedules, birthday reminders, notes, to-do items, anniversaries, and countdown reminders.

Users can also find information on holidays in China, Hong Kong, Macao, and Taiwan, including weekends, festivals, solar terms, and official holidays. The app even includes countdown features for New Year, Spring Festival, and birthdays.

In addition to these features, the app includes a physiological period recording tool for automatic calculation and recording of menstrual cycles. It also offers reminders for lunar birthdays and anniversaries.

Users can also utilize the weight record feature, which includes standard weight calculations and charts showing weight curves and standard weights. The app also allows for objective management, allowing users to add objectives, decompose them into sub-objectives, and track their progress.

The app has a simple interface and no advertisements. For any ideas or questions, users can contact the developer via email at