Nine - Email & Calendar

In-app purchases
31.7K reviews
Content rating
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About this app

The 100 Best Android Apps for 2019 -
16 Android Apps Actually Worth Paying For -

Nine is not a free app.
After enough time using the free trial for 2 weeks and you are satisfied, please purchase Nine licenses.
The price for a license is US $14.99.

As of today email communication became a critical thing as interpersonal communication skill within an organization or in your daily life. There might be nothing more important than efficient communication in the work of a company. Nine is a full-fledged email application for Android based on Direct Push technology to synchronize with Microsoft Exchange Server using Microsoft Exchange ActiveSync, and also designed for entrepreneurs or ordinary people who want to have efficient communication with their colleagues, friends, ‎and family members at anytime, anywhere. You may already have good experience with other E-Mail apps for Android. Regardless of your existing experience, we will give you a superb experience more than anything else. Leveraging E-Mail, Contacts, Calendar, Tasks and Notes on your mobile devices through wireless networks enhances your user experience and dramatically reduces your time.

Key features
- Direct Push Synchronization with Exchange ActiveSync. Nine does not have any server to store user's Nine data. Nine app connects to user server directly. All Nine data is stored in user device only.
- Calendar and Contacts (Integrated into stock Calendar and Contacts application along with Nine account)
- Rich-Text Editor
- Client Cert
- Global Address List (GAL)
- Select folders to push (Email notification per each folder)
- Full HTML (inbound, outbound)
- Secure Sockets Layer (SSL)
- Hybrid Email Search (Integrate with fast local search and online search)
- Conversation Mode
- Unread Badge (Nova Launcher, Apex Launcher, DashClock and Samsung, Sony, Huawei & LG devices)
- Widgets (Unread badge, Shortcuts, Email list, Tasks list and Calendar Agenda)
- Notes Sync (Exchange 2010 and higher)
- Tasks & Calendar Sync
- Modern Authentication for Office 365

Supported Servers
- Exchange Server 2003 SP2, 2007, 2010, 2013, 2016, 2019
- Office 365, Exchange Online
- Hotmail
- Gmail, G Suite (Google Apps)
- iCloud
- Other servers(IBM Notes Traveler, Groupwise, Kerio, Zimbra, Horde, IceWarp, MDaemon, Kopano etc) supported Exchange ActiveSync
- Other servers(Yahoo, GMX,, etc) supported IMAP

Permission Details
- To copy the attachment to an external storage and to export Nine settings.
- To import attachments from an external storage and to import Nine settings.
- To call a contact in Nine Contacts
- To deliver the Device information to server (ActiveSync function)
- To use the account for purchasing a license and to manage accounts information registered in system.
- To use when syncing the user's contacts to server
- To use when syncing the user's calendar to server
- To scan QR code for Entrust Smart Credentials

** Available Android
- Android 4.1 (Jelly Bean) and above

** Note
- Nine is not cloud based. It stores your accounts’ passwords only on the actual device. It connects only to the actual mail servers. It stores your messages only on the device.
- Nine uses the Device Administrator permission.

** Support
- If you have a question or a special request, just send an email to and we will get back to you as soon as we can.
Updated on
Jan 28, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

30.3K reviews
March 21, 2024
I'm a long time user of Nine. It's always the 1st app I've downloaded on new devices. The feature set has been incredible, support was responsive, and the app just worked. Not anymore. I'll never understand why the developer abandoned it for re-works (or whatever it's called). I and many others would have happily paid an annual subscription to keep Nine supported and working the way it did. Made no sense to abandon a loyal user base for a new app. Should have just kept it and charged annually.
8 people found this review helpful
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Abouelmagd Makramalla
March 9, 2024
Using it for years now, best ever, all options available. Update 2/11/2024. I am updating my review. I have been using the nine android app on my phone and tablet for many years and suddenly it stopped syncing on both devices. I tried everything, removing and adding my accounts, deleting the app and reinstalling it and adding my accounts back. I went through all trouble shooting. Support couldn't solve the problem. I tried the new subscription version and had the same issues.
28 people found this review helpful
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February 27, 2024
Edit: Seems to be working again now. ---- Says updated 1-28, but still not syncing. This app seemed bulletproof and stable for 10 years, but is no longer syncing. Is it a Microsoft issue? I keep hoping it will be fixed, but now have to switch to another app. I will try it again in a few months. Every other app i've used is unintuitive.
24 people found this review helpful
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What's new

* Fixed the account verification issue with the base64 encoding format for the URI query value used in Outlook accounts.