Posom

POSOM is a free-to-use digital cashier and billing app built exclusively for businesses in Greece. With no subscription fees or upfront software costs, you can turn your mobile phone or tablet into a fully functional point-of-sale system—right out of the box. Easily manage products, accept payments, track sales in real time, and issue legally compliant digital invoices—fully integrated with Greece's tax authority requirements. Thanks to built-in support for Tap to Pay functionality, you can accept contactless payments using just your NFC-enabled device, as long as the required payment provider app is installed—no additional hardware needed. Whether you're just starting out or expanding your business, POSOM offers everything you need to manage sales and stay compliant—without paying for expensive software licenses or monthly plans.