The Square Register In Person Payment iOS SDK by Square interacts with the API to access credit card payments features for merchant applications. It includes support for in store payments, allowing developes to include merchant ID, default fees, and returns after payment.
Exchanging currency for items or services is such an old time tradition and yet there are so many ways it can be done. I’ve just taken a stroll through the payment systems neighborhood and I’ve felt inspiration from the innovators FaceCash & Dwolla, pride in my home state operator PowerPay, and murky suspicion toward JunglePay.
Square has launched the Register API for Android only a couple of months after releasing the API for iOS. The API allows developers to build end to end point-of-sale solutions that utilize Square's entire payment platform, or that integrate with third party infrastructure and applications.