Riter - Project management & team collaboration tool

Better Notes - Simple notes app that ties notes together with #hashtags

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Paper - Super-clean writing space with a lot of configurability that stays out of sight when you don’t need it.

Confluence - Confluence is content collaboration software that changes how modern teams work

flomo - The minimal memo-taking tool to empower better thinking