TStock is a free Android app developed by THOMI TECHNOLOGY COMPANY LIMITED that helps businesses manage their inventory, products, customers, and employees. With TStock, users can easily keep track of their stock levels, create product catalogs, and manage customer and employee information.

The app also features a notification system that alerts users when customers have outstanding debts or have not returned in a long time. TStock is a useful tool for small businesses looking to streamline their inventory management process and keep track of their customers. However, it should be noted that the app does not include a subcategory and is only available for Android devices.