Viber

Viber is a well known VoIP service which allows you to call and send instant text messages to your contacts without spending a cent of your money. This voice over IP application for Android performs voice calls through your internet connection, so it doesn't affect to your phone company's calls rate, but your data plan or your WiFi connection when available.

This useful application that can make you save a lot of money and lets you stay in touch with your friends and family whether if they're at your same neighbourhood or on the other side of the globe. It doesn't matter where or when, you'll be able to free call or text your Viber contacts for free wherever they are and at any time of the day.

Viber's main screen displays the list of your contacts who are now available to talk to and, in a ridiculously intuitive environment, it allows you to start a free voice call with them, send them a message and even surprise them with some nice and friendly emojis. The graphic design of this application is quite pleasant but is the voice calls' quality what makes the difference in Vieber.

Viber is an application that can not miss in your device, besides of being totaly free and with no ads, it's one of the best VoIP services nowadays offered. It's easy to use and anyone can run it on their devices. It also allows to easy customize your profile and to hold chat groups for sending free messages to multiple contacts.