What is the best personal schedule management tool?

Simple and easy-to-use schedule management software, you can add a dedication sign to use. Personally, I think it's quite useful. This is a kind of post-it software, which is used to take notes and remind people what to do. Its general functions are:

1, notes

The contents of the notes are displayed in bars. Each special note account can add 25 categories of Chinese character positions, and 500 notes can be created under each category.

Step 2 remind

Post-it notes support many functions, such as setting regular reminders, repeating reminders in fixed periods, reminders at intervals of important events, and delayed reminders. The default reminder date is the solar calendar, which can be changed to the lunar calendar as needed.

3. Multi-terminal synchronization

This entertainment schedule management software not only has pc software and web version, but also has APPle App, Android App and iPad version. The contents of the notes are in the same special account, and the data is synchronized by multiple terminals.