VueMinder is a full-featured calendar program. It provides the capability to be reminded of scheduled events in a number of powerful ways, including content-rich popup reminders and reminders that can be sent via email or text messages.
The Gantt Chart is easy-in-use project plan system. This system allows you to specify complex tasks sequences - a task or multiple tasks can be required to be completed before other tasks can be started. The program has iCalendar import and export.
Transfer from Thunderbird to Mac Mail by using the Thunderbird Converter that is most trustworthy conversion program for transferring emails from Thunderbird to Mail in advance way.