Feature Ideas

Set optional start and end dates on tasks to make planning easier.

Enable Apple Watch users to add, view, and complete tasks on the go.

Allow users to mark a task as canceled / not completed to indicate that the task will not be worked on while preserving its details.

I find it useful to see my tasks spread in a calendar, especially in weekly view, so I can make sure I have a healthy workload in my hands each day.

Allow users to manage labels (e.g., deleting, renaming) to give them functional use.

Seamless integration of the calendar to enter tasks directly at a specific time would greatly assist in planning the day. If you want to schedule a task, another window with the calendar could open on the right. In this window, you should also be able to directly schedule the required time by reducing or enlarging the task.

Use tags to organize lists into Kanban boards. This is useful to teams tracking project task status and task priority. Users should be able to click and drag tasks within a Kanban board that is introduced as a new and optional view or as an content type insert.

Archive lists to keep your space organized but access them at any point in time.

Create lists that would basically just be a named saved filter in the sidebar. Setup features could include labels, statuses, dates, assignment, etc. Really filtration by any combination of properties to generate the contents of the list.

Allow tasks to live in multiple related lists

Another highly useful feature - voice input into Siri right into the inbox. Omnifocus has the best implementation, Things isn't bad. Here is how it should work: use your iPhone to say something like: "Remind me to go to the Drycleaners tomorrow" A task immediately goes right into your inbox: "Go to Drycleaners" with a due date of tomorrow.

Attach files directly from Google Drive using Google Drive’s attachment popup API instead of finder. Then, when opening a Google Drive link from Superlist, have it open in a new tab on Chrome.

Allow users to set and update the status of a task to indicate progress.

Allow tasks in lists to be sortable, like in Inbox, Today, and Tasks.

Allow adding a duration estimation to a task to aid with planning.