Duo Number - 2nd Phone Line
Duo Number - 2nd Phone Line Summary
Duo Number - 2nd Phone Line is a ad-supported, with in-app purchases Android app in the Communication category, developed by JUS TECH. LTD.. First released 3 years ago(Dec 2022), the app has accumulated 368.9K+ total installs and 1.4K ratings with a 4.18★ (good) average rating.
Recent activity: 957 installs this week (3.6K over 4 weeks) showing declining growth , and 4 new ratings this week (13 over 4 weeks) with stable momentum. View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Dec 3, 2025. The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Jun 10, 2025.
Store info: Last updated on Google Play on Aug 25, 2025 (version 250105130).
Duo Number - 2nd Phone Line was last scanned for SDKs 2025-12-03. Below is the overview of third party companies detected in the app. The full list of raw SDKs, app permissions and unknown SDKs is available here.
Bumptech
Square
Facebook
MongoDB
Google
Firebase4.18★
Ratings: 1.4K
Screenshots
App Description
Get a second line for unlimited calls and private text messages!
NEW USERS LIMITED OFFER: 3-day trial for one free phone number.
Duo Phone Number, a private 2nd Phone number app, is a calling and texting app that allows you to make calls and send text messages globally. It is also a phone number app without a traditional registration process.
It also provides multiple phone numbers as a sideline on your smartphone to let you call and text for personal use and work separately.
Key features:
*Get a phone number and make free phone calls and send free texts with credits now
*Cost-efficient global calls to over 200 countries and regions
*Local phone numbers for you to choose: US, CA, UK
*Great call quality, HD voice over cellular data & wifi
*Caller ID enabled
*Two-way SMS/MMS enabled
* Why Duo Phone Number *
REAL PHONE NUMBERS
Get a 2nd private phone number to protect your very own number. A real phone number - international texting - unlimited calling - secure number, disposable number, getting phone number is so easy.
CHEAP INTERNATIONAL CALLS
Call any mobile/landline phone number in over 200 countries and regions at super low rates. Get a US, UK, or CA number, and enjoy global calling and international texting using Wi-Fi and cellular phones. Just talk to others for longer at lower rates.
PRIVATE CALL & MESSAGE SMS
Safe and private WiFi calling and texting let you chat and talk safely. Duo Phone Number is dedicated to providing you with a private second phone number for business, school, family, or other personal contacts.
CRYSTAL CLEAR CALLS
With the best phone line, Duo Phone Number ensures high-quality calling. You don't need to worry about bad reception, choppy voice, or your call dropping, but a wonderful online calling experience.
VARIOS CREDITS PLANS
Duo Phone Number offers different credit packages, and all the credits are valid for one year. Don't worry about credits getting expired. It's always there.
Download Duo Phone Number and get a virtual number right now!
We're always excited to hear from you! If you have any feedback, questions, or concerns, please feel free to contact us via:
Email: duonumber@duoface.com
Facebook: @DuoNumber
Instagram：@DuoNumber
Twitter：@DuoNumber
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Disclaimer
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