Do you live in New York, San Francisco, LA, Philly, Boston, Chicago, DC or South Florida? Then you have no reason not to download this app, which has stunningly complete restaurant listings with full menus for your entire city.
Since MenuPages doesn't do reservations (update: it does, though the restaurant's profile page! But only on select, OpenTable-ready restaurants) or emphasize a social function like Yelp, its strengths lie in its completeness—I've got about twice as many proper restaurants listed in my neighborhood on here than in Yelp—and raw information. With MenuPages, you're not looking up restaurants; you're looking up specific dishes, usually with listed ingredients. The app itself is minimalist, but not to a fault: listings are easy to access either manually or according to your current location, the refinement tools are just like the ones you're used to on MenuPages.com, and map/list search results are easy to sort through. And it's free. SO WONDERFULLY FREE. [MenuPages]