Kleine Kassa is an Austrian-based cash register system designed specifically for small businesses and entrepreneurs. It is optimized for simplicity, focusing on essential features needed for managing sales, creating invoices, and handling tax compliance. The platform integrates with SumUp Solo for card payments and supports automatic printing of receipts and invoices. Kleine Kassa is compliant with Austrian financial regulations, making it suitable for small enterprises like cafes, rental services, or freelance work.