The company ZET operates through the URL http://www.zetapp.in and its LinkedIn page is http://www.linkedin.com/company/zetapp-in. However, specific details about ZET's services and target audience are not provided in the search results. Generally, companies with similar profiles might offer technology or software solutions. A unique selling proposition (USP) for such companies often involves innovative technology or user-friendly interfaces. Without more specific information, it's challenging to provide a detailed description of ZET's services or target audience. If you have more context or details about ZET, I could provide a more accurate summary.