To edit a task swipe right on the task and tap the Edit button.
👉 Pro Tip: Swipe hard to the right on a task to automatically go to edit mode.
Here you can enter the details for the task.
👉 Pro Tip: When setting the task date you can double-tap the date heading area to quickly select today's date.
If you are viewing the task details you can long-tap anywhere to automatically start editing, or choose Edit Task from the top menu.