Ring the sale up in Checkout, then take the money one of these ways. Tap to Pay is the golden standard: your phone is the reader, nothing to buy, nothing to connect.
A connected till travels one of two ways.
Square: Ragpiq sends the charge to the device. The customer taps. Nobody touches the Square app.
Lightspeed and Shopify: Ragpiq hands the whole cart to your register, and your own till takes the payment.
Every setup, ranked. The bar measures clunk: 1 is one flow with nothing done twice, 10 is typing every sale into two systems.
Tap to PayThe phone is the reader. Square TerminalOne tap on your countertop reader. Lightspeed registerOne handover. Your register finishes. Shopify POSA few taps to find the draft. Any other card machineYou key the total in by hand.One sale, one till
Never ring the same sale through Ragpiq checkout and a synced Square till as well. Each one records it, so the consignor is paid twice for one item.