Sorting is free for most of the options, only Sort by Due Date is paid behind the paywall. We will update https://taskade.com/pricing to clarify this. You can see a screenshot here of the demo: https://i.imgur.com/FVRHDAV.png

Recurring tasks is paid, but task due dates, reminders, push notifications via email, browser, mobile, are all included free without any limits.

If you have any other questions, do let us know!