If we speak about Quip as word processor with collaboration and chat capability. You get almost the same word processor capabilities with Etherpad (+ plugins) -

If we speak about Quip as word processor with collaboration and chat capability. You get almost the same word processor capabilities with Etherpad (+ plugins) - sure less polished - for free, open source: http://etherpad.org/ http://etherpad.org/ (its root go back to Google Wave)