Whether you're just getting introduced to sushi or are a long time fan, Sooshi should have something to interest you. This surprisingly deep app is split into five sections, providing information on the most common sushis and how to prepare them, the utensils you'll need, how to select the best fish, other ingredients, and, should you decide that you're not feeling up to making it yourself, a restaurant finder that uses your current location and Foursquare information to find the best sushi spots nearby.
Caffeine is everywhere — in our coffee, in our energy drinks, even in our snacks. But very few of us really know how it affects us, or how much they ingest every day. Up Coffee could change all that. Made by Jawbone, it tracks your caffeine levels throughout the day as it learns more about how your body metabolizes the drug. It even compares your intake to your quality of sleep, giving you a better look at how your body works. And while the Up fitness tracker might cost money, Up Coffee is completely free.