* New user LIMITED offers *: Get 500 credits after registration!
Duo Voice is a Free International Calling app that offering high quality of phone call locally and abroad. Use this Wifi phone call app and enjoy global calls with any real phone number without worrying about expensive costs! Call for free and get in touch with people around the world!

WHY USE DUO VOICE:
• 100% FREE calls, call to any kind of phone and anyone you want.
• International calls, easily reach more than 230+ countries.
• Free credits are hidden in daily tasks, get them are make free calls!
• 500 credits limited offer for all new users after registration!
• Internet call allows you to call your friends over WiFi, 3G, 4G or 5G
• Server worldwide to ensure the best voice quality.
• Unlike international calling cards, Duo Voice does not use your cell minutes.

You can call your loved ones without worrying about expensive costs with this phone call app. Download this VOIP Wi-Fi calling app, call free and enjoy unlimited calls worldwide around any mobile and landline! Call any cell phone, local or overseas today!
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Free Calling
Duo Voice is a 100% FREE call app with no extra charge at all! By doing tasks in the APP, you can get credits easily to make free calls.

International Calling
Duo Voice can reach any mobile or landline number in more than 230+ countries or regions! Use Duo Voice, make global calls possible.

FREE Credits
There are millions of ways to earn credits in our app, for example: daily check-in, inviting new friends, watching videos, playing wheel games, etc. Just do interesting tasks, earn credits and make free calls!
*New users will get a bonus +500 credits. Make your first Duo Voice call right now!

Clear & Stable Calling
Duo Voice uses real telephone lines, which means we can guarantee a good crystal clear voice call with a high quality. Duo Voice automatically detects and adjusts your connection speed to make sure more stable calls.

Low Rates
Our calling rates are cheaper than most international calling apps. You can see the final cost of each call in cost history. Also, balance never expires.
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Duo Voice - Connecting you to your international friends and family anywhere. Start your FREE or low cost calls today. Get this free calling app and enjoy unlimited Wi-Fi calls right now!

Rate us a 5-Star(★ ★ ★ ★ ★), if you like us.
Need help or offer suggestions: duovoice@duoface.com

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