The term "duty application" refers to a software program that is designed specifically for calculating and managing customs duties, taxes or other fees associated with importing or exporting goods across international borders. These programs are typically used by companies involved in global trade to ensure compliance with local laws and regulations related to the movement of goods between countries. They can also help businesses minimize costs and delays associated with customs procedures, by providing accurate information on duty rates, taxes, and other charges that must be paid when importing or exporting products. Overall, "duty applications" are essential tools for companies engaged in international trade to manage their cross-border transactions efficiently and effectively.