It is a free website that I use as my ultimate working checklist. It flows well with most devices. I can pull it up on my phone or table when I am out working in the yard. I can add and delete as needed with ease. It saves automatically so I never have to worry about losing something. The right side even has tons of keyboard shortcuts to make things move fast.
I learned about this one from a fellow writer. It has be a godsend for me. It doesn’t just check me over in MS word, but in all of my computer writings: internet, blog posts, web searching, emails, whatever I need. It used to only work with MS word type docs but that was almost a decade ago and they have made tons of great changes. Yes, this one does cost, but I have found it to be worth every penny especially if you are any kind of writer.