Description:
Xkcd: http://xkcd.com/
Access Xkcd comics using this app.
Xkcd updates every Monday, Wednesday, and Friday.
Warning: This comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors).
Screenshots:
Link:
https://itunes.apple.com/us/app/xkcd-comics/id1151911894