Twitter profile isn't updated since 2015 and the site hangs at "Plotbot is having a touch of work done". Website down since 2018. See https://web.archive.org/web/20180816043726/http://www.plotbot.com/
There is no links for this app or the links was disabled.
Our users have written 0 comments and reviews about Plotbot, and it has gotten 5 likes