Quip is the modern productivity suite that simplifies your life and helps your team get work done faster. It combines chat, docs, task lists, and spreadsheets in one app - making collaboration fast and easy. Quip enables you to create and share with your family, friends, or colleagues from any device - including your Mac, iPad, and iPhone.
Note: Quip can be upgraded to Quip Business or Quip Enterprise. Further information can be found here.