Three Apps I Can't Live Without | Zach Sims of Codecademy

Zach Sims is the founder of Codecademy, a start-up that teaches people how to code. 

 Foursquare — "Finding new places is hard but makes New York so much more fun. Foursquare makes it easy."

 Reeder — "Read a ton of news on RSS."

 Kindle — "I read a book or more a week and couldn't do it without the Kindle app and my Kindle Paperwhite."