First Data Mobile Pay is exactly what it sounds like: a mobile payment option available from First Data. That doesn’t mean you need to work with First Data directly to use, but you do need to work with a payment processing company that is compatible with First Data.
The iCharge mobile card reader is a headphone jack card reader originally designed to compete with Square in the European market. No longer limited to Europe, it works with the SwipeSimple app and lets you accept credit cards wherever you are, using your smartphone or tablet.
IDTech's VivoPay UniPay III is the model that allows you to take three different payment technologies with one mobile reader. Easily and securely accept traditional magnetic stripe credit and debit cards, new EMV chip cards, and contactless (NFC) technologies like Apple Pay and other digital wallets.