There are two types of calendar feed:
- Account Calendar Feed - is an iCal feed subscription that includes all tasks from all of your projects with a due date/due date and time
- Project Calendar Feed - is an iCal feed subscription that includes only tasks for a particular project with a due date/due date and time
Note 1: Calendar feeds is a premium-only feature.
Note 2: Tasks with a due date will show up as all day events while tasks with due date and due time will show up as a one-hour block in your calendar. Unfortunately, there's no way to change the task duration yet.
Step 1: Copy the iCal feed subscription URL
Go to https://todoist.com → tap the gear icon in the upper-right corner → tap the Todoist Setting option → scroll down and tap the iCal feed URL → once selected, tap and hold to reveal the "Select all" option and then tap on "Copy"
Step 2: Add your account/project calendar feed as a new subscription
Open the Settings app → scroll down and tap "Calendar" → Accounts → Others → Add Subscribed Calendar → paste the URL you copied earlier → and then tap Next in the upper-right corner.
You can rename the calendar as needed and press Done.
When you open the iOS Calendar app and tap on your available calendars, you should now see the newly added iCal feed subscription under the "Subscribed" section.