VoIP (Voice Over Internet Protocol) is an Affordable way to make calls over internet all you need is wifi or data on your Smartphone. VoIp are very popular now a days most of the companies uses VoIP to reduce call charges, its gaining popularity among smartphone users too, today we gonna list some of the best VoIP apps for Android, iPhone, Blackberry and Windows Phone.
Viber With over 6M downloads Viber is one of the most popular VoIP app, it also allows free texts.
Viber allows you to place voice calls over data newtork or Wi-Fi to other Viber users anywhere in the world, for free. Viber is available on Windows Phone, Desktop, Ios, Blackberry, Nokia and Android.
Skype allows you to make free text message,video and Voice calls to the users who are in your friend list you can also call them in their phone number by after adding Skype credits available on Android, iPhone, Blackberry and Windows Phone.
With MagicJack calls to any MagicApp number anywhere is free it allows international calling at very low prices see the plans here
With over 10 million users and more than 200 countries, Fring lets you make free mobile Group Video chat with any friend in the world.
Fringrs can make free 2-way video chat, voice calls and text chat, you can call any international landline or Mobile from $0.01/min.