Tweek Calendar is a Minimal Weekly Planner & To-Do List App. Tweek is built without any hourly scheduling so it's the best view to organize your life and work without stress. The latest addition to the family of task planner apps. Its key feature is the weekly view — which, according to developers, is the best approach to visualizing tasks. A very useful feature automatically moves your unfinished tasks from today to the next day. Tweek allows you to run several calendars simultaneously (e.g., personal and work) and share them.