HAP Business Portal is a free Android application developed by HATSUN for business and productivity purposes. It is designed to help field staff and others to manage their work efficiently.

The application provides a platform for field staff to manage their daily tasks, schedules, and appointments. It allows them to track their progress and update the status of their work in real-time. The app also provides a chat feature that allows users to communicate with their team members and share important information.

Overall, HAP Business Portal is a useful tool for businesses that want to streamline their operations and improve productivity. It is easy to use, and the interface is intuitive. It is an excellent solution for field staff who need to manage their work on-the-go.