WorldPay, a global leader in payment processing for 20 years, launched WorldPay Zinc in June 2013. Based in London, WorldPay Zinc aimed to provide small businesses and sole traders in the UK with an easy to use, secure way to take credit card payments with its card reader and a smartphone or tablet. Top of FormWorldPay Zinc supports MasterCard and Visa credit cards, as well as Visa and Maestro debit cards. It does not take American Express and JCB. It is compatible with the iPhone 6, iPhone 5S, iPhone 5C, iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, and iPad (2nd, 3rd, 4th generation). Also, it is compatible with the Android devices: Android OS 2.3.x or 4.x, with GPS, and an MDPI resolution or greater. It can only be used in the UK, and WorldPay decided in 2017 that it was phasing it out. Therefore, it is no longer allowing customers to sign up.