The card scanning library is very powerful, easy to use, fast and reliable. It has all that's needed when it comes to credit card processing. There are just few minor bugs which can be easily fixed. I've developed a mobile app in order to help my customer with their check-in process at hotels and restaurants. This was one of the major problems I faced while developing this software. By using card.io we were able to solve this problem by providing our customers with an easier way to pay for their food and beverages.