Mar 11, 2013 - Indie developer, Richard Aberefa today announces the official release of Cardup 1.1 for iPhone. Cardup enables anyone to call their family or friends located anywhere in the world for a low price. The app provides a way to avoid the expensive call rates to reach people overseas, offering the cheapest rates anywhere to make calls. Phone calls made with Cardup cost two cents per minute for most places. Calls to the US, Canada, China, and India, users spend half a cent per minute on each call.