Square Point of Sale (POS) funktioniert nicht

Square Point of Sale (formerly Register) is the free point-of-sale app that gives you everything you need to run and grow your business.  The free Square Dashboard app works in sync with Square Point of Sale and lets you view your live sales data in seconds.  Keep track of sales and inventory, manage items and view analytics about your business—all from your point of sale.  Square Point of Sale has everything you need to start, run and grow your business from your iOS device.  You can access powerful analytics and easy tools to help you track and improve your business.  Square’s software may not be fully certified or otherwise compliant with local laws and regulations.  Get the latest point-of-sale features with regular app updates.  No fees, commitments or surprises.  Use of uncertified or otherwise non-compliant software may lead to your noncompliance with local laws and regulations, which could result in your being fined or otherwise subject to civil or criminal penalties.