As someone who not only keeps kosher, but also works as a mashgiach(kosher supervisor), I often find myself away from the computer and searching for kosher food options. There are two good iPhone apps that help users locate the closest kosher options, whether it's a box of cereal or an Italian restaurant you're looking for .
RustyBrick's kosher app links to the largest kosher database on the web at the Shamash site. With over 2,000 restaurants in the database, the Jewish Kosher App for the iPhone or iPod Touch looks up the nearest kosher place to eat from your current location, using the iPhone's GPS features. (If GPS or localization isn't on or available, a location or name can be typed in.) Additionally, a kosher symbols database is available to quickly look up what kosher symbols are backed by which organizations or rabbi. As a bonus feature, all of the food blessings and prayers in Hebrew are included in this app so one can give proper thanks before and following the meal.
Another new iPhone app to help the kosher eater locate food is called My Grocery Master. It allows users to browse and search a database of over 100,000 Kosher, gluten-free and lactose-free items across the United States, meeting the user’s lifestyle and dietary requirements. Created by Nosh Maven LLC, My Grocery Master enables people following kosher diets to find acceptable food near their location.