5 hot apps: Facebook learns to listen; Pareup wastes not; more

The Facebook team has updated its mobile app with a function that allows it to listen in on background noise, pinpoint media--including TV shows, movies and music--and then include that media in a status update. The info will be included as a subset of the popular "feelings and activities" section of statuses, 5 billion of which were posted in the last year, according to Facebook. The company says that the new feature will make conversations "quicker and easier," and is just one more indication of the social network's newfound devotion to mobility. To avoid getting too Big Brother-y, Facebook made the function optional, and it can be disabled in the app's options.

Looking to become a more ubiquitous name in the mobile customer relationship management, or CRM, industry, salesforce.com released last week an update to its mobile CRM app that included 30 new features focused on creating a single environment for customers to complete their tasks. According to InfoWorld, the added features include the ability to directly access reports and dashboards and allows for offline data access, which will let salespeople work even when they have no Internet connection. Furthermore, salesforce.com more closely linked their cloud services and app, which will allow marketers to entry to client data.

The characteristics of a solid Stache are sleek, well-groomed and a personal collection of all your interesting and inspiring online content. If that last one doesn't make much sense, then check out the new app from d3i. The company's foray into personal bookmarking lets users connect to their various iOS accounts and bring their bookmarks anywhere with their iPhones, iPads or Macs. Hoping to cut down on the "endless lists of unorganized messy page titles" that comes with default bookmark features, the app provides a scrollable list of screenshots for a more illustrative experience.

More than six million pounds of food are thrown away in New York City every day. Pareup is looking to help change that. By creating an app and an accompanying online marketplace, the new company hopes to curb waste and create a more efficient means of transferring food that retailers may not want, but restaurants, nonprofits and other organizations would gladly take for cheap. And since 30 percent of all food in the United States ultimately goes to waste, the company has plans outside of the Big Apple.

Neel Sus, a resident of the Greater New Orleans Area, realized there was a dilemma for otherwise well-meaning folks met on the streets by panhandlers: will the money I give actually be used for food? So he created an app that guaranteed it would be. Carebacks allows donors to give a dollar amount to a participating store, and then provides the user with a pin number to give to the person in need. That person can then go to the store and redeem the voucher for only verified items, which means no tobacco, alcohol or any other vices.