I'm using the search function to do GTD's inbox/daily review/weekley review/monthly review, and it works great.
But monthly review(checked off yes, and date completed was in the last 30 days)doesn't work, so i read the help documents, and found this:
Members with a free account can save their completed tasks for up to 6 months, however any task completed more than 1 week ago will be hidden. Subscribers can extend the retention time and unlock the ability to view tasks completed more than 1 week ago.
Completed tasks can be viewed in a variety of ways.
Does that means i should upgrade my account to Pro/Pro Plus? thanks!