I know there are more robust outliners out there and I am somewhat ashamed to admit I pretty much have them all, but no matter how far I stray I always come back to Workflowy. It welcomes me with open arms, "Come dear prodigal outliner, I am so glad you are home."

Funny you should post. I was looking for a simple multi-platform replacement for Carbonfin as I use it as a packing list and wanted access on my phone, PC or tablet. I wanted something simple and thought Workflowy might do the trick. I logged into an account I opened several years ago and soon remembered why it was not the program for me. While I like the collapsible outline form, I do miss my check boxes and folders. I then tried Dynalist, but their mobile Android app was just a bit too buggy for even basic use. I am glad that Workflowy works for you, and I know that many appreciate its minimalist UI, but sometimes things can be too minimal, and for me, this is one of them.

--Ken