Nine - Email & Calendar

In-app purchases
31.4K 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
Apr 1, 2022

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
This app may collect these data types
Financial info, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted
31.4K reviews
BebéTechManiac 2018
July 29, 2022
Nice mail client, has a lot of options and themes settings to make it yours, the look you want. I wish a couple of things that hopefully can be setup for the future... an option to ask... do you also want to delete the email from the server? That way I don't need to do that from the trash folder. Another thing, an easy to view indicator that the email is being sent, and then a checkmark, done indicator. I would like to know the purpose of the sanitize option, and the Peak on sync menu.
6 people found this review helpful
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Albert H
August 12, 2022
No option between 1 month and 10 years for how far back to sync email. That's a pretty big gap. And it doesn't work for large mailboxes, just hangs. When opening an email draft in one email box, can't change the 'From' to send from another mailbox. When selecting text, it doesn't scroll down past what's visible on the screen. Cannot hold-click to select multiple emails in search results.
16 people found this review helpful
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Jim Crist
August 12, 2022
I have an Office 365 account with my company that had worked perfectly when all of a sudden I no longer receive push notifications for new emails. I am constantly missing emails that won't download until I open the app. Once opened, the app shows a "couldn't sign in" dialog and then a massive amount of emails flood my inbox. I have even tried setting the synchronize setting for every 5 minutes with the same issue. This app is completely unusable now.
1 person found this review helpful
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What's new

* Optimized certificates management
* Fixed other bugs and implemented some performance improvements.