zipCAT is a free iPhone application developed by CCMA. Construction Communications Material App LLC, categorized under Lifestyle. The app serves as a platform for users to buy and sell leftover construction materials, find work opportunities, list jobs for hire, and advertise services within a community of trustworthy users.

Users can easily list their leftover materials, tools, and equipment in 17 different categories, ranging from interior/exterior materials to vehicles and landscaping items. Buying local leftover or used materials is also facilitated, promoting sustainability and cost-efficiency. Additionally, zipCAT allows users to find workers for small jobs, as well as discover local work opportunities and licensed companies or contractors for hire. The app offers features like in-app camera usage, transaction ratings, and secure payment methods through PayPal or STRIPE. zipCAT aims to foster a community that promotes environmental sustainability, local connections, and cost savings.