XPAY KNOWLEDGE
Industry WIKI
Digital assets and currencies
Understand assets, networks and trading mechanics with sources you can check.
Trading basics
Revel Systems
Revel Systems is an iPad-based point of sale system co-founded by Lisa Falzone and Christopher Ciabarra. In June 2024, it was announced that the company was acquired by Shift4.
Payments & settlementSumUp
SumUp is a British financial technology company headquartered in London. SumUp’s primary product is an EMV card reader and a number of online payment and bank account system for merchants and businesses.