Nexa Mobile is designed to enhance productivity and efficiency for sales professionals by providing key functionalities on the go. The app includes features such as calendar, contacts, call plans, and projects. It supports both online and offline modes, enabling users to access and update their data even without an internet connection and using smart features like voice to text, favoriting the data for quick access. Additionally, the app also integrates with the Kemin email calendar and Nexa Call Plans, providing a seamless user experience for all sales people.