Viber requires a 3G or Wi-Fi connection to use. Viber is prominent for speedily syncing with your existing contacts, and for not requiring users to register prior to making a call. Viber offers various types of stickers, a ton of bells and whistle that a user can use in its text conversation or voice message. The app can be downloaded from the app store and download is absolutely free.

It also gives you the option to call landlines and mobiles at minimal charges.

Viber offers free video and voice calling if two persons are using the same app. Viber is the perfect choice for you if you like emoticons. You just need to connect with the Internet on both sides to use this app. It is one of the most popular and powerful apps and works really well. Like all another app, you can enjoy these features only if the person, you want to connect with also have WhatsApp installed on his/her smartphone. In starting it was only a text-only platform but slowly upgraded and also added a feature like a free voice message, calls, and video call. Currently, Whatsapp has over 1 billion global users on the service. Moreover, WhatsApp provides group chat and location sharing options. People are globally using it for free calling and chatting. WhatsApp is particularly admired by end users who do not have boundless text messaging. Whatsapp is probably the most popular free calling app among the people right now. In case you want to use Skype for calling at any actual number then you need to pay for credits. Moreover, you can use this app for chatting with other people who use Skype. It is one of the most popular free calling applications and can be used on smartphones as well as computer or laptops. You can easily make a call from Skype after your invitation is accepted by another party. Skype service is available in US and Canada and its call charge depends upon user location. Calls between computers are usually free, and other Skype calls are generally inexpensive. Skype allows you make calls to people around the globe via your computers or telephone and have text chats. Also, if you want to make a call on a landline number or mobile then charges are very low. Skype was launched in 2003 and from starting it offers Skype to Skype calling free.

Skype for iphone make free calls