Free. Android. Category: Chat. Viber offers its 800 million worldwide users a solid set of messaging tools for staying in touch, but some of its features have a me-too quality. Pros. Connect via Facebook, or not: During setup, you are given the option of using your Facebook details to connect to friends.
Free. Size: 31 MB. More than 50.000 downloads. Android. Category: VoIP. High quality voice calls for free to all of your contacts.