In web version, search the task you have completed, and then click search completed task in red font, then you may see the tasks you finished. That's how I did it. Hope it helps.
Thank you. It seems of all the wonderful things this program does, one of them is not the ability to click on a calendar date and see what went on that day, and another is to show all the tasks for a given project, both completed and outstanding. Thank you for your help. I appreciate it. I wonder if the Premium version does these two things . . .
I am a premium user, I think it does if you are a premium user. But think carefully before you buy.