1.2M Android Apps Tracked Updated 5 min ago Revenue Forecasts
Create Account Sign In
Home Optimize
58
BU Score
Solid

Nine - Email & Calendar

3.1 ✍️ Editor
✍️ bumetric analysis

Nine - Email & Calendar is an Android app from NextIntelligence.ai in the Business category, currently rated 3.1★ across 31,983 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Our BU Score puts it at 58: Solid (established niche player). For a Business app, that means established niche player.

Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

Loading…
idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (31,983 ratings)METRIC
+$5,500
Below-average rating (3.1★)METRIC
−$1,500
Mature app (12y old)METRIC
+$1,500
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v4.9.7b🔄 updated 2mo ago📂 Business💰 Free💎 IAP $14.99 per item🚀 Launched 2014 (12y old)

📝 About this app

The 100 Best Android Apps for 2019 - https://bit.ly/2PWe259
16 Android Apps Actually Worth Paying For - https://bit.ly/2G7vkJX

********************
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.

<b>Key features</b>
- 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
- S/MIME
- IRM
- 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

<b>Supported Servers</b>
- Exchange Server 2003 SP2, 2007, 2010, 2013, 2016, 2019
- Office 365, Exchange Online
- Hotmail
- Outlook.com
- 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, Mail.ru, etc) supported IMAP

<b>Permission Details</b>
* WRITE_EXTERNAL_STORAGE 
- To copy the attachment to an external storage and to export Nine settings.
* READ_EXTERNAL_STORAGE
- To import attachments from an external storage and to import Nine settings.
* CALL_PHONE
- To call a contact in Nine Contacts
* READ_PHONE_STATE
- To deliver the Device information to server (ActiveSync function)
* GET_ACCOUNTS
- To use the account for purchasing a license and to manage accounts information registered in system.
* WRITE_CONTACTS, READ_CONTACTS
- To use when syncing the user's contacts to server
* WRITE_CALENDAR, READ_CALENDAR
- To use when syncing the user's calendar to server
* CAMERA:
- To scan QR code for Entrust Smart Credentials

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

** Note
- <b>Nine is not cloud based.</b> 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 support@9folders.com and we will get back to you as soon as we can.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Nine - Email & Calendar
Developer
NextIntelligence.ai
Bundle ID
com.ninefolders.hd3
App Store URL
Open in App Store
Category
Business
Content rating
Not found
Languages
Not found

Company

Website
www.9folders.com
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$1.4K/mo
Top-grossing rank
Not found
All-time revenue
Not found
Pricing
$14.99 per item

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
📈Ratings growth31,983 ratings+25% lifetimeShow 3-year history estimate ▾May 2023Dec 2024May 2026
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.

Similar apps in Business

Full revenue analysis
Read the article-style breakdown for Nine - Email & Calendar: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →