Compare: Nine - Email & Calendar vs Nine Work for Android Enterpri

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Metric	Nine - Email & Calendar	Nine Work for Android Enterpri
User count	1,499,427	166,791
Average rating	3.03	3.04
Rating count	31,987	628
Last updated	2026-03-16	2025-12-19
Size	54.83 MB	148.30 MB
Version	4.9.7b	4.9.6h

Short description	Nine is a full-featured email app supporting Exchange and IMAP with direct push sync, calendar, contacts, and robust security features on Android.	Nine Work is an Android Enterprise email app syncing with Exchange Server via ActiveSync. Seamless, secure, and efficient communication for businesses.
Full summary	Nine is an intuitive and powerful email application designed for Android users seeking efficient communication in both professional and personal settings. It supports Microsoft Exchange ActiveSync for direct push synchronization, enabling real-time email, calendar, contact, task, and note management without storing data on external servers. With features like rich-text editing, S/MIME encryption, IRM, and a hybrid search function, Nine enhances security and usability. Compatible with a broad range of mail servers including Exchange Server, Office 365, Outlook.com, Gmail, iCloud, and others supporting Exchange ActiveSync or IMAP, Nine ensures seamless integration across platforms. Its widgets, conversation mode, and unread badges optimize productivity, while the app respects privacy by storing all data exclusively on the user's device. Nine requires a paid license after a two-week free trial and supports Android 4.1 and above.	Nine Work for Android Enterprise is a powerful email app designed to synchronize seamlessly with Microsoft Exchange Server using ActiveSync and Direct Push technology. Built to support Android Enterprise and compatible with leading MDM solutions like AirWatch and MobileIron, it offers secure and efficient email communication tailored for businesses. This app supports multiple accounts, integrates calendar and contacts with stock Android apps, and provides advanced features such as S/MIME, IRM, Global Address List, and rich-text editing. Nine Work ensures data security by storing all user data solely on the device, not in the cloud, and supports various mail servers including Office 365, Exchange Online, and Google Apps. With user-friendly interfaces, widgets, and support for Android Wear, Nine Work enhances productivity for professionals on the go.