It looked like a simple to do app initially but, as I discovered, it’s so much more.. How do you save the small details so that you can review them later?. I don’t think I’ve come across an app that provides a list function like Twos.. This stems from the Twos philosophy - simply remember things, and all of your things in one place. It’s an app for writing things down.. It’s not just a to do app. It’s not just a reminders app. Or a things app. It’s several functions rolled into one.. Twos sits at the intersection of productivity and note taking. And this is where it packs a punch, and makes it a terrific app for writers.. It’s one of those apps that you can make your own and that’s what really works for me.