價格：免費
檔案大小：12.5 MB
版本需求：macOS 10.13 或以上版本，64 位元處理器
支援語言：英語
Count down to the launch of imporant missions, say at NASA or your startup. Keep counting, however long the mission is (note: mission durations should be limited to +/- 1000 years).
Customize the color scheme to match your style.
To customize a mission, create a new mission via the Mission/New menu item or alter an existing mission by selecting Mission/Configure...