
1. Viber

2. WeChat

3. Skype

4. Line
This application is allow us to make free voice calls and video calls. We can also send messages. In 231 countries more than 410 million people using this application. This app is very simple to use and you can share your status, photos and anything easily. It also have sticker market and you can find your favorite character in this market. You can also add famous celebrities on Line. Download Line from here .
5. Tango
Tango is also for free video and audio calling. You can connect with your family and friends with this and also can make new friends. You can make calls anywhere. Text messaging and free games makes Tango more interesting. You can also chat in group more than 300 friends. You can also make friends from any country.Download this from Google Play Store from here .
Final Words
These applications are top and famous applications for free audio and video calling. I tested these applications and these are very great application. If you find any other best application then please mention it in comment i will add it in my list.
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