Most popular FREE productivity apps – 2019 Update

A couple of years ago I wrote a post about productivity apps (project management, collaboration etc.) that I have used as I was getting asked about them a lot by our clients. I was re-reading it earlier this week and decided it was time for an update, because there are some new kids on the block and some changes that should probably be mentioned. So this is the 2019 update of this original post for your reading pleasure!