CauseWorld, a mobile app that lets users check in to retail shops for credits that can be donated to charity, is clearly on a roll. The app first launched in December as “the first mobile application that let’s you do good deeds simply for walking into a store.” CauseWorld app users earn “karma points” when they walk into stores and check in with their cell phone. No purchase is required at any store, and karma points can be redeemed nine predefined good causes. Big brands like Kraft Foods and Citi (both are on board) then turn the karmas into real dollar donations to those causes.[Read more...]