There are still 494 days until Kristin Cavallari's first book, Balancing on Heels, drops. So what will you read today, on a boring Saturday so far in the distant past, instead? Kristin has a recommendation. When asked in an interview with DWNLD, an app-making company, what her favorite app is, Kristin responded: "I guess I have to say mine!"

This has been 500 Days of Kristin.

[Photo via Getty]