Nine is a premium email application for Android devices that offers a comprehensive set of features designed to enhance communication efficiency. It is particularly useful for individuals who rely on Microsoft Exchange Server for their email needs. Nine utilizes Direct Push technology to synchronize with Exchange ActiveSync, ensuring real-time updates and seamless integration with email, contacts, calendar, tasks, and notes. The app does not store user data on external servers, prioritizing security and privacy by keeping all information on the user's device. With support for various email servers, including Exchange Server, Office 365, Gmail, and iCloud, Nine caters to a wide range of users seeking a reliable email solution.

The key features of Nine include Direct Push Synchronization with Exchange ActiveSync, integration with stock Calendar and Contacts applications, a rich-text editor, support for Client Cert, S/MIME, and IRM, Global Address List (GAL) access, and the ability to select specific folders for email notifications. Additionally, Nine offers full HTML support for inbound and outbound emails, Secure Sockets Layer (SSL) encryption, hybrid email search functionality, conversation mode, unread badge notifications, and widgets for easy access to emails, tasks, and calendar events. The app also supports modern authentication for Office 365 users, ensuring compatibility with the latest security protocols.

Nine emphasizes user privacy and security by storing all data locally on the device and connecting directly to mail servers without intermediary servers. The app requires various permissions, such as access to external storage for attachments, device information for ActiveSync functionality, and account management for licensing purposes. Nine is compatible with Android devices running Jelly Bean (4.1) and above, offering a reliable email solution for users who prioritize data security and efficient communication. For support inquiries or special requests, users can contact the Nine team via email at [email protected] for prompt assistance and guidance.