Did Square provide terminals gratis? If so, that's a great deal especially in a multiple station environment. I can get free Lane 3500s all day long but touch s

Did Square provide terminals gratis? If so, that's a great deal especially in a multiple station environment. I can get free Lane 3500s all day long but touch screens and scanners usually have an upfront load. Do you receive a commision from Square as compensation to build on their platform?