How to replace Tasks and Calendar in Outlook?

Question

CRM

Tell me how to replace Tasks and Calendar in Outlook?
I never learned how to use tasks. I use Calendar for my to-do list. But it is not convenient to keep statistics of completed cases in it - you delete the task in the trash and that's it.

Goal: Keep a to-do list for yourself and for the company. And to see what work has been done.
Access: PC and smart

Answer 1

Planfix, and the free plan is pretty functional.

Answer 2

zoho
onlyoffice