How does a retailer using Square manage PCI compliance? Are retailers using Square automatically non-compliant? My understanding is that PCI Council has not ap

How does a retailer using Square manage PCI compliance? Are retailers using Square automatically non-compliant? My understanding is that PCI Council has not approved mobile applications under PA-DSS, and merchants who accept card using software that is not PA-DSS are automatically non compliant on PCI-DSS.