Circle ( circle.com/en ) is a company that works to enable users to store and use the money anywhere in the world, a company that invested in the idea of Bitcoin long as we can see on their website Presentation:
We are so excited about Bitcoin and electronic money as we were when we found online for the first time in 1990. We believe that opportunities to transform payments and finance are as large today as it was in 1993 to transform the media information, communication and commerce through web.
Now they have created mobile applications for Android and iOS that allows users to make payments, submit and request money and convert between Bitcoin and dollars, but for now can only be downloaded in the US (already working on the internationalization of them). The Circle website is now available in seven languages, but we can only link a bank account in the United States.
With these apps routine tasks may be carried out in the digital world, the protagonist being the bitcoin. A "paypal bitcoin" that many users have been waiting for some time, it also being possible to use QR codes and convert between dollars and using Bitcoin accounts and related bank cards, as discussed in TC .
In regards to security, integrate with authentication modes in two steps, PIN codes and other systems TouchID specifying in your blog .
