Food Squared is a Quantified Self food logging app that uses a persons Foursquare checkins to allow them to create a history of what they have eaten.
Currently, food logging is one of the most time consuming aspects of quantified self. There are two major user experience pain points that Food Squared aims to solve
1) Reduce friction (time spent, steps required) to save a food entry
2) Allow for logging asynchronously from when food is consumed